Changing the Subject - Harder Formulae (Higher Only)

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Changing the Subject - Harder Formulae (Higher Only) | GCSE Maths Tutor

Рет қаралды 142,728

Күн бұрын

A video revising the techniques and strategies for changing the subject of harder formulae (rearranging formula) - Higher Only
This video is part of the Algebra module in GCSE maths, see my other videos below to continue with the series.
🔹 Watch the video
🔹 Make notes
🔹 Practice the questions
🔹 Mark your work
🔹 Review what you have learnt on the exam questions
Part 1 - Laws of Indices - • Laws of Indices (Highe...
Part 2 - Collecting Like Terms - • Collecting Like Terms ...
Part 3 - Expanding and Simplifying - • Expanding Single Brack...
Part 4 - Double Brackets - • Expanding Double Brack...
Part 5 - Factorising - • Factorising (Higher & ...
Part 6 - Factorising Quadratics - • Factorising Quadratics...
Part 7 - Substitution - • Substitution (Higher &...
Part 8 - Changing the Subject Part 1 - • Changing the Subject o...
Part 9 - Simultaneous Equations - • Simultaneous Equations...
Part 10 - Changing the Subject Part 2 (Higher Only) - • Changing the Subject -...
Part 11 - Expanding Triple Brackets (Higher Only) - • Expanding Triple Brack...
Part 12 - Factorising Harder Quadratics (Higher Only) - • Factorising Harder Qua...
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Пікірлер: 189

@irfan6973 3 жыл бұрын

thanks so much you’ve helped me learn like 6 completely new higher topics that i never knew i would be able to do i’ve just started watching and the space of three days i’ve learnt so much the only problem is i really struggle with understanding exam questions and would really appreciate it if you could make a video on exactly how answer exam styled questions that are written in a harder format to understand

@KKMDB 3 жыл бұрын

Simon Deacon here on YT is great for going through exam questions and papers.

@lola100yearsago8 2 жыл бұрын

@@KKMDB it’s 3 minute maths now

@premamuthukumar5352 11 ай бұрын

ty@@lola100yearsago8

@flynnsimpson9190 4 жыл бұрын

loving your way of teaching /explaining maths that i thought was impossible to figure out. Please keep up your videos you legend. :)

@TheGCSEMathsTutor 4 жыл бұрын

Flynn Simpson Thank you so much for the feedback I’m so glad to hear the channel is working out for you! 😁🙏🏼 let me know if there are any particular topics you are struggling with!!

@flynnsimpson9190 4 жыл бұрын

@@TheGCSEMathsTutor Yes. I have just started back at school and your videos have really helped me get a head start. I will definitely comment in the future with any topics i am struggling with. Im glad you replied back and are offering help if i need it. 😁🥰👨‍🏫

@TheGCSEMathsTutor 4 жыл бұрын

Flynn Simpson great to hear! Keep up the great work 😁

@alinalilka8430 3 жыл бұрын

@Elisha Jacoby guys its a scam I've seen so many people saying this

@maximusekon146 3 жыл бұрын

@@alinalilka8430 lol

@muzhirasadeek6431 2 жыл бұрын

before this, i had to watch multiple videos and learn from many people to grasp and understanding of some math topics, and even then i'd forget after while. your channel is amazing, i get the concepts almost instantly and when i do the questions alongside w the video, i always get them right now, and my igcse is the day after tomorrow, so i really appreciate stumbling upon this channel. it's literally a lifesaver and i'm practically glowing and i feel so relieved and am less stressed about the paper. thank you for your work and keep going! we need people like this. -a (previously) stressed student

@4hm3d.7 Жыл бұрын

bro i hated these higher questions and hoped these wouldn't pop up in my exam but after watching this and practising some more im so confident i can ace those questions, YOUR A LEGEND THANK YOU!!

@Letik3x 2 жыл бұрын

Thank YOU some much! i have mocks in a few weeks and my teacher was trying to explain this topic but she over complicated it. Your way of teaching really help me so Thanks !

@TheGCSEMathsTutor 2 жыл бұрын

I’m so glad to hear that! It’s always helpful to hear different methods and have different option so I’m really glad this one worked for you 😁🙏🏼

@mattie_sizer7187 2 жыл бұрын

this is so helpful, gcses start in a few weeks and i really need to get a 6 in maths, i will watch ur vids frequently from now till gcses. good luck everyone in exams!

@mxmuxd 2 ай бұрын

what grade did u get for maths

@SaqPK 24 күн бұрын

What u get?

@SaqPK 24 күн бұрын

I was grade 3 in my yr10 mocks and stuck in foundation, after finding out about this channel in the summer before yr11 i grinded these topics and this channel. I moved to higher in october yr11 and i managed to get a 6 in yr11 mock. Worked harder as i knew i can achieve more and i ended up getting a 8 in the actual gcse and im in process of math and business a levels

@_shxyxn_ Жыл бұрын

The way I never understood maths and now because of your videos I’ve started to understand everything is really insane and out of my mind thanks a lot u help me alottttt

@jessicachloe5071 Жыл бұрын

my igcse is in 3 days and i've been watching your videos, they are so helpful. thank you so much please know you make such a great impact!!!

@Swon549 3 жыл бұрын

BEST YT CHANNEL EVER, HOW DO YOU TEACH THIS SO WELL?

@JettixX Жыл бұрын

For the question at 6:10 , I think you can also take 10y from both sides after the first stage to be left with 5x = 2px - 3p - 10y which goes on to give an answer of x = 2px-3p-10y all over 5. Inserting the same numbers into y, p and x for both of our answers, the outcome is the same

@maxgilliver577 3 жыл бұрын

Thank u before this I couldn’t even make x the subject in really simple equations now I’m feeling more confident on this topic thanks a lot :)

@erenyeager6668 Жыл бұрын

Guys. if its slightly different to the maths tutor then you're good; you still got it right

@jeoq Жыл бұрын

please stop using 'z' it looks too much like a 2

@Maxtreon. 3 ай бұрын

Well it's good he uses it here cos later on in the exam you won't be confused

@jeoq 3 ай бұрын

@@Maxtreon. nah not really cause he’s hand writing them, it’s different compared to printed ink

@JassyKaur-gc1he 2 ай бұрын

Em please don’t interfere with this video it’s none of your business what he does so get a sike

@jeoq 2 ай бұрын

@@JassyKaur-gc1he ironic

@Bxm009 2 ай бұрын

god knows how many times i wrote “2” and got the whole thing wrong omg

@lightningd-pad 6 ай бұрын

had an hour long session on how to do this last week at school and understood none of it, Came to these videos and suddenly the whole topic made sense! genuinely a lifesaver man, thanks!

@atoz9254 2 жыл бұрын

Thank you so much for teaching/explaining maths. You are a great teacher. Please don't quit this because you are helping lakhs of students :)

@TheGCSEMathsTutor 2 жыл бұрын

Thank you so much for your kind words! It’s really appreciated 😁

@saeko_5106 Жыл бұрын

you are a life saver to all of us

@bake-to5pw 7 ай бұрын

This channel is actually amazing.It gets me good grades and its the best way go learn so thank you!

@nasimahmed1372 4 ай бұрын

Thank you. I started watching your vids from November(I was at a 4 then) and now I’m currently working at a 7. I have gcse in 3 weeks hopefully I can get to 8-9.Your videos really do help 😊

@Jayzsucksatlife 8 ай бұрын

thank you! I didn't understand this topic even after 2 100 minute lessons, but this has helped me so much and I actually got the practice questions on the video correct after struggling so much!

@sivikasi 2 жыл бұрын

Great video as always - quick question to anyone who can answer - obviously it's relevant whether you end up with say, 5 - 2p as opposed to 2p - 5. Is there a rule for getting them in the right order? eg: should the number always go last? Thanks and good luck to everyone doing their exams this year - I'm feeling your pain

@franciscaferreira6741 2 жыл бұрын

exactly what i was wondering, i dont really know what to do when it comes what side I should choose

@fatimaalramahi9944 2 жыл бұрын

Yeah same cos for the first one I got the same but with different signs and order cos I moved the like terms to a different side.

@leilaparker537 2 жыл бұрын

i believe that both options would be right

@imforeveru Жыл бұрын

Imagine the - is attatched to the 2p. So 5-2p can be written as -2p + 5. It can’t be written as 2p-5

@laughterfamily9943 2 жыл бұрын

For the question 4x-y=z(x+5) can the answer be -y-5z/z-4 =x Also, your videos are truly helpful . Thank you so much!

@_angeell Жыл бұрын

thats what i was wondering

@verywholesome Жыл бұрын

Thank you bro I thought I got it wrong

@TertiaryQuota 9 ай бұрын

I got this aswell and i wanna know if its right

@user-ro3yb6hq2v 8 ай бұрын

thank you ive always found these confusing, but this has helped so much, thank you so much

@ReActivee Жыл бұрын

when it comes to rearranging the equation, you said you can get 2 answers. Will the 2 answers both be correct of just the one you show?

@tdfwhcdwihbwdcjib 2 ай бұрын

this was so helpful omg thank you

@TheGCSEMathsTutor 2 ай бұрын

Glad to hear it! 🙌🏼

@Skeptoff123 Жыл бұрын

Thanks ive got a math exam soon and this was a real help thanks.

@Buttar24. 2 жыл бұрын

Year 9 really helped me thanks 🙏

@TheGCSEMathsTutor 2 жыл бұрын

So glad to hear it 😁🙏🏼

@Sportcat01 2 жыл бұрын

I have this question for my homework . I have done this but can you just please double check to see if I have done it correct so I know how to do the rest? Here is the question 2x+2y=P Make x the subject Firstly, 2y is on its own so you can move it to the other side so now the equation is 2x=P-2y To get x just divide by 2 So the final answer is x= P-2y over 2( p-2y numerator and 2 denominator) Have I done it correctly??

@TheGCSEMathsTutor 2 жыл бұрын

Sounds perfect to me! 😁🙏🏼

@abdulwadood6531 2 жыл бұрын

Thanks I literally understood the whole thing in only under 1 minute thanks to you

@meerkatking5521 4 жыл бұрын

Could you make a video on forming and solving equations. (Higher)

@TheGCSEMathsTutor 4 жыл бұрын

Meerkat King Absolutely! I’ve bumped this to the top of my GCSE to-do list for you! I’m just focusing on some a-level videos right now but it will be my next GCSE video for sure 😁🙏🏼

@meerkatking5521 4 жыл бұрын

Thanks so much keep up the amazing work

@TheGCSEMathsTutor 4 жыл бұрын

No problem! I’ll do my best! 😁🙏🏼

@mrgoatliri6224 3 жыл бұрын

4:44 the answer is as shown but if I were to move the x value to the opposite of what you have done I will get an answer of -y-5z/(z-4) which is inversely to your answer, would it be correct in the exam????

@preciouslove8962 2 жыл бұрын

I was thinking the same thing rather it would be right or not

@antonroy415 2 жыл бұрын

I would say keep the x where it is so then there's no variations. Hope this helps.

@emmyy6072 3 жыл бұрын

for the first question at 7:13 i got -y-5z over p-4 = x is this still correct?

@alfieweller3295 2 жыл бұрын

i got the same however the p-4 was a plus instead

@alfieweller3295 2 жыл бұрын

never mind i realised what i done wrong xd

@Ecclessia 2 жыл бұрын

I got the exact same

@whoami27968 Жыл бұрын

how do uk when to move the x on right or left side

@TheGCSEMathsTutor Жыл бұрын

You can go either way! Just got to pick one 😁🙏🏼

@actroskharis1095 Жыл бұрын

good work

@qasimraza1732 3 жыл бұрын

Dear matbs tutor, great vid but could u please not use z's because they look like 2's

@qasimraza1732 3 жыл бұрын

@Callese who tf are u

@qasimraza1732 3 жыл бұрын

@Callese no one was speaking to u 🤐

@amadif1793 3 жыл бұрын

For the question at 7:31 would -2p-12y/3-5p also be a correct answer

@Ryan-rz2qd 3 жыл бұрын

i got the same and im confused too. I think that works

@elestrello6564 2 жыл бұрын

same

@beomgyusberry5773 3 жыл бұрын

at 5:58 could you also get 3p-10y if youd have moved them to the other side instead??

@x_k1lls_xyt159 2 жыл бұрын

How do you know which way to move the x , like why does the x go to left sometimes then to the right sometimes?

@korvexus9922 2 жыл бұрын

Idk

@galaxychildrenacademythega4977 5 ай бұрын

This is an excellent lesson

@jakewatson668 3 жыл бұрын

This was really helpful. But what about when there is a fraction on both sides? That messes my brain

@TheGCSEMathsTutor 3 жыл бұрын

A great question! You just have to multiply both denominators to the other side side of the equals sign 😁🙏🏼

@mine9120 2 жыл бұрын

thank you!!

@olliecole7163 2 жыл бұрын

For 4:35, is it still correct if you put all the x's on the other side and got (-y-5z)/(z-4) = x?

@danthemilker6037 2 жыл бұрын

think so i tested it and both formulas get the same number for x if you use 2 numbers for z and y

@The_bad_guitarist Жыл бұрын

Your a lifesaver fr fr

@TheGCSEMathsTutor Жыл бұрын

So glad to hear I could help 😁🙏🏼

@sukiestar8401 2 жыл бұрын

This makes so much more sense, thank you again!

@TheGCSEMathsTutor 2 жыл бұрын

No problem at all! Which topic is next? 😁

@sukiestar8401 2 жыл бұрын

@@TheGCSEMathsTutor Well I've just got a list of topics to revise for my upcoming exams, I'll be watching your vids for help 🙂 they help so much, I appreciate you making these videos as they really help!!

@TheGCSEMathsTutor 2 жыл бұрын

@@sukiestar8401 Amazing news! If you can’t find any in the playlists let me know, sometimes revision lists have topics named slightly differently! Are there any that stand out that you’re not sure of? 😁

@sukiestar8401 2 жыл бұрын

@@TheGCSEMathsTutor Do you have a video for factorising quadratics in the form ax2+bx+c or solving equations in the form ax2+bx+c=0?

@vickycutajar 2 жыл бұрын

Can you help explains this X=square root (absquare +c Devide de Making c the subject

@rainb1750 Жыл бұрын

Use Microsoft math solver

@NA-pj1to 9 ай бұрын

Hello, at 8:37 i got a different answer because i took away zx instead of the x at 9:21, so the solution i got was x = (5z-3)/(1-z) would this be correct as well?

@artzie1070 2 жыл бұрын

does it matter which side you choose to rearrange the x in? because i get different answers but the same layout. or is that normal?

@leilaparker537 2 жыл бұрын

i think both options would be right

@artzie1070 2 жыл бұрын

@@leilaparker537 yeah i realised lol

@willowbloomfield4402 Жыл бұрын

Very helpful :)

@daniellechad5748 4 жыл бұрын

hi there, at 10:09 I chose to move the brackets a different way because you said it didn't matter in this case and I got : 5z-3/z-1 is that still correct ?

@TheGCSEMathsTutor 4 жыл бұрын

Danielle Chad Sounds fine to me!! 😁🙏🏼

@preciouslove8962 2 жыл бұрын

@@TheGCSEMathsTutor would mine still be right too since I got 5z-3/ 1-Z

@sumii7480 2 жыл бұрын

For the third example, can you have an answer of x=-3p-10y/5-2p. Would the answer be correct?

@eaimy.x 2 жыл бұрын

i got that too, i feel like that would be equivalent to the answer he gave

@ibrahimabdullah6147 2 жыл бұрын

at 10:05 could you not also say 5z-3/1-z ?

@carpentersbug 3 жыл бұрын

Thank you, I found this very helpful

@Roseklouds 2 жыл бұрын

for the first practise one i got -y-5z/p-4 = x, is that still right?

@bradley9856 3 жыл бұрын

why not factorise at the begining?

@tylertyler8439 3 жыл бұрын

7:29 I got X= +5Z-Y/(-P+4)? I moved the 4X to the otherside at the start so I think consequent the symbols oppose to the answer you got is that still correct, can you have more than one answer? Great videos btw you make it a lot easier to engage with the lesson :)

@TheGCSEMathsTutor 3 жыл бұрын

Absolutely there are usually two different answers to these type of questions 😁🙏🏼

@cryingthrowingup4256 Жыл бұрын

hi, for the third question i minused 10y and 2px and my final answer was x = -10y -3p / (5 - 2p). is this wrong because i dont know what numbers im meant to move to what side

@lilly-vq5uj Жыл бұрын

thats what i did and i have no idea which way to move the numbers

@studywithmeloo 26 күн бұрын

i got that too

@preciouslove8962 2 жыл бұрын

At 10:09 can the answer be 5z-3/ 1-Z would that still be right or does it have to be in that order

@meerkatking5521 4 жыл бұрын

for the question on 6:33 would the answer 3p+10y over 2p-5 still be right

@TheGCSEMathsTutor 4 жыл бұрын

Meerkat King Absolutely!!!

@Ryan-rz2qd 3 жыл бұрын

@@TheGCSEMathsTutor can it also be 3p-10y/5-2p instead of 10p+3p/2p-5? because i did it the other way?

@okechukwukenechukwu4155 2 жыл бұрын

Please when the grouping of the Xs' is done on the other side like maybe the right hand side, a different answer is gotten from when it is done on the right hand side. Are both correct.

@Tapatv- Жыл бұрын

Very helpful thank you

@eimmana2510 2 жыл бұрын

Hi sir I love your videos they are so helpful as I have my gcses approaching, for the question at 12:10 I took away the 2 first , This made my final answer x=-2-3z/(z-1) Is this still correct?

@lola100yearsago8 2 жыл бұрын

Yes it is.

@everythingtv4875 Жыл бұрын

@@lola100yearsago8 ok good i did the same thing

@Ryan-rz2qd 3 жыл бұрын

I did it the other way for most questions and got the same answer with different signs. I am rlly confused.

@casi3258 3 жыл бұрын

Yeah same but i set all the variables to a random number and substitued it to my answer and his and we got the same answer in the end so i think its allowed

@youssefhili3410 3 жыл бұрын

Thank you so much ❤️❤️

@umaryusaf7074 Жыл бұрын

just revising, but for eg z=x-2/x+3 can you put the answer as x=3z-2/z+1

@hayaqazi1160 3 ай бұрын

How come i keep getting the right answers but the powers are all opposite- like instead of 2x - 3 i get 3 - 2x?

@amandab118 9 ай бұрын

for the first question, could you not just divide by z????????

@lulualhashimi 9 ай бұрын

teacher if I took different number from the ones you took to different side and got same answer with different digit like negative is that okay

@uzi.goyard6118 2 жыл бұрын

I dont understand when we're supposed to bracket an answer and when not to.

@Shimeez 3 ай бұрын

Lol I kept getting confused between my z's and 2's when doing the questions

@Dz-nn9gt Жыл бұрын

What were the other possible answers for the last 2 questions?

@blessedwiltshire8149 2 жыл бұрын

I don't understand. Help. Please

@TheGCSEMathsTutor 2 жыл бұрын

What exactly don’t you understand? Might be worth revisiting this one over time 😁🙏🏼

@cristineshepherd6947 2 жыл бұрын

thank you

@oscillatefn8303 2 жыл бұрын

Niceeee bro 💯🔥💪👏🙏🏅🥇🏆🌟🙏👏💰💰💰😁🙏👏

@TheGCSEMathsTutor 2 жыл бұрын

Thanks!!!! Hope it helped?

@oscillatefn8303 2 жыл бұрын

The GCSE Maths Tutor Yeah your a legend 👑

@Bannapickleonion Жыл бұрын

can i leave the things in brackets or do I have to simplify them

@atv8365 2 жыл бұрын

What grade range am I looking at with these type questions? A 6?

@carlosdano849 10 ай бұрын

The only thing I don’t get is which side to get the x on???? Or does it not matter

@yejihour1281 5 ай бұрын

Apparently it doesn't

@haiamustafa3978 Жыл бұрын

Does higher math means AL math or OL math?

@UJLMAO 2 жыл бұрын

For 13:04 if you removed the stuff from the other side wouldn’t you get -3z-2/z-1 =x which is different to yours?

@seducedol7269 2 жыл бұрын

8:28 Hey would my answer be wrong for the 2nd question if I got x= 2p-12y/3-5p

@Alicyclic-pb2hm 7 ай бұрын

that's what I got too, it is right?

@PSYCH0XEDITZ Жыл бұрын

But other than that thanks for the teaching and questions

@ieatalot4189 Жыл бұрын

12:23 why is it 3Z

@gemmakhan8419 4 жыл бұрын

i totally do not understand.Is ot necassary to learn this for higher or can i just leave this topic out

@TheGCSEMathsTutor 4 жыл бұрын

Gemma Khan Yes! Rearranging formula is an essential component of algebra 😁

@gemmakhan8419 4 жыл бұрын

@@TheGCSEMathsTutor do u reckon i can get a 6 without learning this. Like i understand the basics of changing the subject but simply cannot get my head round these harder formulae. Is there possibly any hope of getting a 6

@TheGCSEMathsTutor 4 жыл бұрын

Gemma Khan Ofcourse you can!!! This is right at the top end of rearranging formula, which part throws you? If you can identify the step that throws you then maybe I can help? You just need to get any piece containing the letter you are trying to make the subject on one side and everything else on the other side, from there you factorise the subject out and divide by the bracket (tried to write that out as simply as possible!) - if you watch a few you will see a lot of similarity in these questions! 😁

@gemmakhan8419 4 жыл бұрын

@@TheGCSEMathsTutor basically uno at 3:35 i dont understand wth you done to the y. Arent you supposed to minus zx from both sides. So confusing.

@Manunited-cu4zo Жыл бұрын

What exam board is this for???? Please say edexcel

@TheGCSEMathsTutor Жыл бұрын

It’s the same on all exam boards 😀 so yes.. Edexcel!! 👌🏼

@Manunited-cu4zo Жыл бұрын

Thanks now I can use ur vids to help me

@sahararabzaie4484 3 жыл бұрын

i dont get it can you please help me?

@nightcorenightwish7506 3 жыл бұрын

I'm confused on like when you start idk what to start

@seducedol7269 2 жыл бұрын

13:19 would x= -2-3z/z+1 be correct doing it the other way for question 1?

@Ecclessia 2 жыл бұрын

I got the same

@Ecclessia 2 жыл бұрын

I think its still correct tho you just decided to move x to a different side

@lobbyfiller3337 2 жыл бұрын

Could the answer for the first question also be x = 3z-y/(3-2)?

@ooo_ikk1911 2 жыл бұрын

I got x= -y-3z / 3-z .

@leylaahmed7801 2 жыл бұрын

It was good video but I just don’t get this lesson even in skl I struggle on this ugh

@premamuthukumar5352 Жыл бұрын

8:51

@Abisoak Жыл бұрын

I keep getting the signs wrong

@cheesetoastyy6902 2 жыл бұрын

at 8:20 whats the harder question lol?

@TheGCSEMathsTutor 2 жыл бұрын

Could you elaborate? 😁🙏🏼

@cheesetoastyy6902 2 жыл бұрын

@@TheGCSEMathsTutor doesn’t matter lol could you answer my other question

@getridluvmawy 2 жыл бұрын

rate the intro brev

@PSYCH0XEDITZ Жыл бұрын

Honestly I Get a little bit confused with the arranging the formulae

@yusaf2324 2 жыл бұрын

11:00

@khattakjarir3399 3 жыл бұрын

How much would these be worth

@TheGCSEMathsTutor 3 жыл бұрын

3/4 marks 😁🙏🏼

@elitshnd2010 Жыл бұрын

Can I detect a slight yam yam accent?

@TheGCSEMathsTutor Жыл бұрын

I’m from the midlands but more central Birmingham! I get a bit of all the accents 😁🙏🏼

@elitshnd2010 Жыл бұрын

@@TheGCSEMathsTutor that's great! Congratulations and thank you for all your hard work you have put into your youtube channel and your website.

@mrgoatliri6224 3 жыл бұрын

Found it bro

@TheGCSEMathsTutor 2 жыл бұрын

Perfect 👏🏼👏🏼

@coralmaguire7853 2 жыл бұрын

I love u

@mangoose642 Жыл бұрын

noice

@ellisfletcher3491 4 жыл бұрын

your intro is very loud but your voice is quiet

@TheGCSEMathsTutor 4 жыл бұрын

That’s odd there is no volume change on any of my devices, I have since changed the intro though 😁🙏🏼

@lailataluminousnight8064 3 жыл бұрын

Are we the prey? No we're the hunters!

@ellisfletcher3491 3 жыл бұрын

@@TheGCSEMathsTutor it's more noticeable on actual stereo speakers. Also thanks for replying I'm doing a level maths n physics now lol

@ashbelgill7439 4 ай бұрын

delete this my grandma died while watching video

@hayaqazi1160 3 ай бұрын

What does your grandma have to do with rearranging formulae