Solving simultaneous equations by elimination

  Рет қаралды 148,106

Whiteboard Maths

Whiteboard Maths

4 жыл бұрын

In this video we look at a method of solving linear simultaneous equations called elimination where the goal to combine the two equations into one whilst eliminating a variable. From this we can then solve the problem. (With examples).

Пікірлер: 127
@julianstrickland7998
@julianstrickland7998 3 жыл бұрын
maths exam tmr thx for help
@yashemespencer9795
@yashemespencer9795 3 жыл бұрын
Same 😂🤸🏾‍♀️
@tayluhswiff13
@tayluhswiff13 Жыл бұрын
how mych did u get
@FatemaVajihi
@FatemaVajihi 5 ай бұрын
Yep
@kiwi5574
@kiwi5574 2 жыл бұрын
i dont really comment on math videos but thank youuu this was really helpful :>
@strikz
@strikz Жыл бұрын
you explained this so well i fully understood all of it tysm
@rem.4561
@rem.4561 2 жыл бұрын
Thank you so much
@nelsondavidnheu9648
@nelsondavidnheu9648 Жыл бұрын
Those markers are smooth damn
@claraLilian2023
@claraLilian2023 Жыл бұрын
Thanks a lot. I do have pro with these topic but now am cool.
@beautylebene956
@beautylebene956 8 ай бұрын
This is very easy, thanks
@EricahMbewe-sl1sp
@EricahMbewe-sl1sp Ай бұрын
Very good explanation thank u
@FransShaululu-rw7od
@FransShaululu-rw7od 3 ай бұрын
I learned a lot in this
@user-ek9zf6vn4y
@user-ek9zf6vn4y 6 ай бұрын
nice video im writing my final exams in few months
@Lucid326
@Lucid326 3 жыл бұрын
Thank u dis helps mi out alot
@reginanarh5567
@reginanarh5567 3 жыл бұрын
U have really made it easy for me
@nausheenkashif2448
@nausheenkashif2448 8 ай бұрын
Thank you so much🎉
@mauricekeyrouz3599
@mauricekeyrouz3599 Жыл бұрын
how do uk what to multiply by
@radyapanglimunan
@radyapanglimunan Жыл бұрын
you dont know hom helpfull this videos is, thxx!!
@roccocoa
@roccocoa Жыл бұрын
On the last problem, i got x as -47/11 and y as 63/11. When substituting into equation 1, it came out as 33 so im confused
@user-sm8to1ib4r
@user-sm8to1ib4r Ай бұрын
You can maybe try talk to a teacher or something to help you Maybe try get an app or something that can also explain it to you more easily? Maybe try search for another video?
@roccocoa
@roccocoa Ай бұрын
@user-sm8to1ib4r it's been a year, I think we both know I've probably figured this out by now but thanks.
@user-sm8to1ib4r
@user-sm8to1ib4r Ай бұрын
@@roccocoa yw
@AlizeRocha
@AlizeRocha 2 жыл бұрын
Where did the 2x come from? In problem 2
@syedmohammadwasi1013
@syedmohammadwasi1013 Жыл бұрын
Your question is confusing, elaborate.
@arnavkonnur2946
@arnavkonnur2946 2 жыл бұрын
I love this guy! ❤👍
@cas9098
@cas9098 2 жыл бұрын
thank u so much i have a math exam tommorow😭
@PaulmbathaKangethe
@PaulmbathaKangethe 17 күн бұрын
Thanks 😊😊 for it
@jworldgaming.3849
@jworldgaming.3849 2 жыл бұрын
Why multiple by 3 and when did 9 come from
@aidang4070
@aidang4070 2 жыл бұрын
the multipled by three so that it would match up with the other y which is 3y so it could cancel out. SOrry if it isn't well explained
@ample8383
@ample8383 Жыл бұрын
when do you add and subtract 2 and 3 because you added in the first one and subtract in the second and didnt explain
@misskarwao5324
@misskarwao5324 10 ай бұрын
I swear I don't know myself, I've watched so many videos and no one explains it and I ended up on this video tryna find an explanation
@robinsonjlome8878
@robinsonjlome8878 Жыл бұрын
Where did you get 3 from?
@dctc-_-3934
@dctc-_-3934 Жыл бұрын
21 by 63 is 3
@user-il7fc2kp8o
@user-il7fc2kp8o 6 ай бұрын
Thank you
@traplrdbw9665
@traplrdbw9665 2 жыл бұрын
👌
@iamserious15
@iamserious15 10 ай бұрын
Excuse me why did you multiply by three
@candice2847
@candice2847 Жыл бұрын
really helpful thanks
@bharathvarshagoud.g483
@bharathvarshagoud.g483 9 ай бұрын
Bro I did not understood even I practiced it for 10 timesss Now I understood cuz of uu🙏🏻🙏🏻
@imadreamer2988
@imadreamer2988 2 жыл бұрын
i am confused
@furiousgaming9858
@furiousgaming9858 Жыл бұрын
Omg
@ultraviolet8924
@ultraviolet8924 Жыл бұрын
life is confusing
@mainika.-ks7os
@mainika.-ks7os Жыл бұрын
Than your too slow or you hadn't tried this at school yet no offence
@kfjfkeofitorhf9520
@kfjfkeofitorhf9520 Жыл бұрын
11X===77 X=7 14----6==8 21++2==23
@_o6629
@_o6629 Жыл бұрын
Y'all aren't indians thats why you confused 😂
@kemoneseaton9231
@kemoneseaton9231 Жыл бұрын
Base on what I've learned this isn't correct or maybe it's just different numbers that u used than what I used. Cause I used 2 and 3 to get the coefficients to be equal numerically
@mohemmedsaadqadri2509
@mohemmedsaadqadri2509 Жыл бұрын
But dear the answers should come same, if it's different the n it's definitely wrong......
@syedashiquehussain5908
@syedashiquehussain5908 3 жыл бұрын
Well explained 👍😊
@user-sc6in4lm4d
@user-sc6in4lm4d 5 ай бұрын
I love this❤😊.little by little you will understand ❤
@sirajhikma7605
@sirajhikma7605 3 ай бұрын
Still don't understand 😢😢
@sahilpawar8959
@sahilpawar8959 2 жыл бұрын
How to know when to add or subtract equation
@sarafnawerelahee1531
@sarafnawerelahee1531 3 жыл бұрын
Thanks a lot🌞
@all_about_Gaming115
@all_about_Gaming115 8 ай бұрын
Taught well but I didn't get the concept
@kingmyself2944
@kingmyself2944 9 ай бұрын
Seconds equation by 3 how
@amazing-gracechibuzor-iloh4515
@amazing-gracechibuzor-iloh4515 Жыл бұрын
I don’t understand 😢
@maze8548
@maze8548 4 жыл бұрын
thx this helps, nice vid
@TheUnknownNover
@TheUnknownNover 5 ай бұрын
I understand but not understand ion know how that works
@chianuajoy60
@chianuajoy60 3 жыл бұрын
This help me but I don't understand 3× and 2×
@bob-manuel
@bob-manuel 3 жыл бұрын
Why are you multiplying by 3?
@BiggieBlox
@BiggieBlox 17 күн бұрын
is it just me or i cant understand y i keep getting my x as 0.7 in my question!
@badrasaalax9696
@badrasaalax9696 2 жыл бұрын
The median of the data 8kg.7kg.9kg.10kg.and 11kg please
@susannah805
@susannah805 Жыл бұрын
9kg
@zeeshanahmedmughal8559
@zeeshanahmedmughal8559 2 жыл бұрын
why multiply by 3
@loading.....7251
@loading.....7251 2 жыл бұрын
Bcoz we have to make the 2 eqns y same as 1 so it multiply by 3 so it will become 3y and then both get cancelled
@gamingwithayush9460
@gamingwithayush9460 2 жыл бұрын
@@loading.....7251 Tnq it helped me toooo
@user-np1id7pb7w
@user-np1id7pb7w 8 ай бұрын
why do you times by 3? wthhhhhh
@noobanimations6523
@noobanimations6523 2 ай бұрын
Umm, maybe I’m just really stupid, but I understood what you said, applied to my math problem, and got the wrong answer… help pls!
@awk_soru
@awk_soru 2 ай бұрын
same bruh
@sofiaimran1644
@sofiaimran1644 3 жыл бұрын
Why take 3 n 2 ????
@sofiaimran1644
@sofiaimran1644 3 жыл бұрын
Plz reply
@haroonsher692
@haroonsher692 2 жыл бұрын
To match the equation so that two values can cut each other
@OkonkwoSamuel-ss2ue
@OkonkwoSamuel-ss2ue 3 ай бұрын
I am confused
@romeoayobeauty1692
@romeoayobeauty1692 3 жыл бұрын
Well defined and explained
@bethelmutale-of4ix
@bethelmutale-of4ix 11 ай бұрын
Am confused
@enahorosylvester424
@enahorosylvester424 3 жыл бұрын
I don't' understand elimination
@NafisatuKinyuy
@NafisatuKinyuy 3 ай бұрын
Thank you very much i really understand the equation
@AdetolaSunday-eh5lm
@AdetolaSunday-eh5lm 2 ай бұрын
anybody that says i don not understand is right
@keepinthefaith.5406
@keepinthefaith.5406 Жыл бұрын
😢
@user-bl5yc6dq5j
@user-bl5yc6dq5j Ай бұрын
Bro what is this I’m so lost
@gabaeletlhokomokoka3052
@gabaeletlhokomokoka3052 3 жыл бұрын
Why multipliying by 3
@hninthazinpwint4572
@hninthazinpwint4572 3 жыл бұрын
tht is what i want to know to.Why 3
@haroonsher692
@haroonsher692 2 жыл бұрын
To match the equations so that two values can cut each other
@reamsyed8999
@reamsyed8999 Жыл бұрын
Because they got the value of y in the first equation which is 3 so instead of writing y with the first equation they multiplied by 3 aka the value of y
@icdt.u2
@icdt.u2 Жыл бұрын
its bad explination
@ElBonito_14
@ElBonito_14 6 ай бұрын
Who invented Mathematics
@KarpSucks
@KarpSucks 4 ай бұрын
Around 3000 BCE, the Sumerians developed a numerical system based on the sexagesimal system (base 60), which is still in use for measuring time (seconds, minutes, and degrees in a circle) today. They also made strides in geometry, algebra, and arithmetic.
@hanineagil4706
@hanineagil4706 Жыл бұрын
2x3 = 6 not 9
@adeenaiqbal9208
@adeenaiqbal9208 Жыл бұрын
He has wrote 2 because he wants because he has multiplied equation 2 by 3
@kfjfkeofitorhf9520
@kfjfkeofitorhf9520 Жыл бұрын
9X--3y==69 2X+3y==8 === 11X==77 X=7 14--6==8 21--(-2)==23 Y=-2
@AnilJadhav-mi5op
@AnilJadhav-mi5op 4 жыл бұрын
Hi
@talphazero1036
@talphazero1036 4 жыл бұрын
#1:47 Noice...
@flacketgaming7389
@flacketgaming7389 3 жыл бұрын
Noice
@majorjason
@majorjason 4 жыл бұрын
2:20 group like terms
@Imaguy99
@Imaguy99 6 ай бұрын
Y do I think these comments are sarcastic
@BROIJUSTWANNABECOOL
@BROIJUSTWANNABECOOL 3 ай бұрын
real
@AnilJadhav-mi5op
@AnilJadhav-mi5op 4 жыл бұрын
Ho
@jeffmumba858
@jeffmumba858 6 ай бұрын
Fake who taught these fake things
@AnilJadhav-mi5op
@AnilJadhav-mi5op 4 жыл бұрын
Hi
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