Learn how to solve a system using substitution using the easy way

  Рет қаралды 85,753

Brian McLogan

Brian McLogan

9 жыл бұрын

👉Learn how to solve a system of equations by substitution. To solve a system of equations means to obtain a common values of the variables that makes the each of the equation in the system true. To solve a system of equations by substitution, we solve for one of the variables in one of the equations and then substitute for the variable in the other equation and then solve for the other variable. Next we plug in the obtained value of the other variable into the equation for the initial variable we solved for to obtain the value of the variable.
The value of the two variables obtained is the solution to the system of equations.
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Organized Videos:
✅Solve a System of Equations Algebraically
• Solve a System of Equa...
✅Solve a System of Equations Using Substitution | Easy
• Solve a System of Equa...
✅Solve a System of Equations Using Substitution | Hard
• Solve a System of Equa...
✅Solve a System of Equations Using Substitution | Learn About
• Solve a System of Equa...
✅Solve a System of Equations Using Elimination | Learn About
kzfaq.info?list...
✅Solve a System of Equations Using Elimination | Easy
• Solve a System of Equa...
✅Solve a System of Equations Using Elimination | Medium
• Solve a System of Equa...
✅Solve a System of Equations Using Elimination | Hard
• Solve a System of Equa...
✅Solve a System of Equations Word Problem
• Solve a System of Equa...
✅Solve a System of Equations With Three Variables
• Solve a System of Equa...
🗂️ Organized playlists by classes here: / mrbrianmclogan
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👨‍🏫 Current Courses on Udemy: www.udemy.com/user/brianmclog...
👨‍👩‍👧‍👧 About Me: I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips. Find more here: www.freemathvideos.com/about-me/
#Systemofequations #Algebraically #brianmclogan

Пікірлер: 95
@soggeysandwhich1122
@soggeysandwhich1122 4 жыл бұрын
I know this video was 6 years so you might not get this. But I wanted to thank you, I’ve really having trouble with this section of math since the beginning. I’m really glad I found you because no matter how hard my teacher or my peers tried to get it in my head I simply couldn’t get it. But this jut made me click. I’m so glad you make these videos, homework isn’t even a struggle anymore so I thank you.
@zareefadollx4542
@zareefadollx4542 5 жыл бұрын
thankyou so much.this helped me on my math project
@Ajrre-md1bu
@Ajrre-md1bu 6 жыл бұрын
Your are such a saint for posting these videos! Thank you so much, this video helped me a lot!
@jovanylara4336
@jovanylara4336 4 жыл бұрын
But does he like cheese?
@mastereric1013
@mastereric1013 3 жыл бұрын
@@jovanylara4336 🧀
@debraarizona4809
@debraarizona4809 7 жыл бұрын
Awsome! Teacher some times you take off like a rocket,gets a little hard to process!...thank you!
@brianmclogan
@brianmclogan 7 жыл бұрын
I agree, I need to slow down, working on it
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan But do you like cheese?
@aaarcane
@aaarcane 3 жыл бұрын
Sir Bryan McLogan I just visited one of your old videos about simultaneous , thanks for making these videos this really helps me because last time i took a quiz about these things i failed , but i suggest try making simultaneous linear equations but in problem solving because that is where I am more confused of
@rayugagamer3095
@rayugagamer3095 Жыл бұрын
Go and search in yt jr tutorial how to do algebra
@TehDanno1
@TehDanno1 5 жыл бұрын
6y + y = 7y because of what you said at the beginning with the 1•y thing? Studying for my GED, granted might only be a few equations on it I'd like to ace the math part.
@JBLB_FILMZ
@JBLB_FILMZ 6 жыл бұрын
wish you were my teacher. actualy involve your students.
@brianmclogan
@brianmclogan 6 жыл бұрын
try to as much as possible
@pan_cake205
@pan_cake205 4 жыл бұрын
Thank you even it is fast it is more easier to learn
@totokawa
@totokawa 4 жыл бұрын
Do I always use the bottom equation at all time for Y input.
@tryagainlater5208
@tryagainlater5208 5 жыл бұрын
So I'm preparing for my GED and I can't seem to get the concept down Im not sure how to get the steps to stick in my head
@tokita-3368
@tokita-3368 4 жыл бұрын
Well try again😎
@edgarf.1698
@edgarf.1698 6 жыл бұрын
at 5:03 when you subtract -9 to -5 does it have to be positive 14..?
@brianmclogan
@brianmclogan 6 жыл бұрын
no think about it this way, you owe me 9 dollars and borrow 5 more. you now owe me 14 dollars (-14)
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan Si, do you like cheese?
@kfjfkeofitorhf9520
@kfjfkeofitorhf9520 Жыл бұрын
-5-9=-14 แต่มันแทนค่าไม้ได้นะ 4/7 เพาะ-5+9==4 แต่y=-7 X--(-21)===3 X++21===3 X=-18 -18++21==3 -18++(-14)==-32
@naiy1751
@naiy1751 2 жыл бұрын
What if the system has no solution(parallel) or is infinite(One line) how can I tell them apart and how can I apply this knowledge to the other those if I can?
@zubedaahmed5158
@zubedaahmed5158 4 жыл бұрын
He's rushing for someone who is struggling will get lost straight away
@Gabbs_0.x
@Gabbs_0.x 4 жыл бұрын
You can change the speed of the video and it will play slower or pause. The beauty of a video.
@lavalaygang212
@lavalaygang212 6 жыл бұрын
Could u do a video with you doing the graphing method
@brianmclogan
@brianmclogan 6 жыл бұрын
yes just search "#system graphing mclogan" I have a ton of videos
@yesenia6982
@yesenia6982 3 жыл бұрын
i still don't understand. fudge my hw. i don't care no more. fudge math. thanks teacher.
@nicholasgallas2545
@nicholasgallas2545 5 жыл бұрын
What do u do when there is no coefficient of 1?
@brianmclogan
@brianmclogan 5 жыл бұрын
elimination by using multipliers, I have videos like that as well
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan yes but do you like cheese?
@xoxoali9070
@xoxoali9070 6 жыл бұрын
What grade are you teaching in the video?
@brianmclogan
@brianmclogan 6 жыл бұрын
Probably Algebra 2 multiple grades
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan And also do you like cheese?
@mss_ml5019
@mss_ml5019 5 жыл бұрын
What if it was x - y = 8 with x + 2y = 2
@ghulamqasim8835
@ghulamqasim8835 6 жыл бұрын
good
@brianmclogan
@brianmclogan 6 жыл бұрын
thank you Ghulam
@dimies6289
@dimies6289 4 жыл бұрын
Stephanie has left the chat.
@abshiroosman7942
@abshiroosman7942 6 жыл бұрын
My question is how would I solve this system subtitution Y:X+8 Y:9X
@brianmclogan
@brianmclogan 6 жыл бұрын
Here is a playlist I have on that topic kzfaq.info/sun/PL0G-Nd0V5ZMrGE-w4_gFa2fTsQqsm2Wax
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan 5
@francisemilchicano7045
@francisemilchicano7045 6 жыл бұрын
how can I solved dis 3x+2y
@brianmclogan
@brianmclogan 6 жыл бұрын
use mathway.com
@kfjfkeofitorhf9520
@kfjfkeofitorhf9520 Жыл бұрын
3X+++2y==
@Jay-sg5gg
@Jay-sg5gg 6 жыл бұрын
which grade you teaching in this video?
@brianmclogan
@brianmclogan 6 жыл бұрын
not sure, algebra 1 or 2
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan Also do you like cheese?
@natem1985
@natem1985 2 жыл бұрын
will we be able to watcht the fight on their livestream at 10 on here?
@UmarKhan-bx3ml
@UmarKhan-bx3ml 4 жыл бұрын
Why did u subtract 9 from 9+7y=-5
@ValtonGraphics
@ValtonGraphics 6 жыл бұрын
Where did you got the 7 at 4:57
@brianmclogan
@brianmclogan 6 жыл бұрын
6y +y
@probaze9437
@probaze9437 6 жыл бұрын
because he added the 6y and just the plain y and the plain y is actully 1y so then it becomes 7y
@markfranklin7965
@markfranklin7965 Жыл бұрын
I didn't know you taught Lonzo Ball.
@johnnolen8338
@johnnolen8338 Жыл бұрын
Two words: Row Reduction. 😎
@hoeean2141
@hoeean2141 6 жыл бұрын
How do i solve 3x+7y 5x+2y
@brianmclogan
@brianmclogan 6 жыл бұрын
same process as the video
@Methintic
@Methintic 5 жыл бұрын
Combine the like terms.
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan You have 5 seconds
@pradeepdubey5418
@pradeepdubey5418 6 жыл бұрын
Make a question of that type of method and just remind our language
@brianmclogan
@brianmclogan 6 жыл бұрын
huh?
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan Huh, I mean, do you like cheese?
@thepackmonster483
@thepackmonster483 6 жыл бұрын
6 plus 1 equals 7
@brianmclogan
@brianmclogan 6 жыл бұрын
correct!
@juliak5980
@juliak5980 5 жыл бұрын
EASY! HAHA! LOL
@IXI_MUSIC
@IXI_MUSIC 5 жыл бұрын
Julia K ur the definition on cringe
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan But do you like cheese?
@AbdulRahmanEsmat
@AbdulRahmanEsmat 3 жыл бұрын
@@jovanylara4336 ummm ......maybe who knows
@Slankyboy_Jay
@Slankyboy_Jay Жыл бұрын
wait wait where did he get 7 from though??
@brianmclogan
@brianmclogan Жыл бұрын
Timestamp?
@dalemarkwiegand6468
@dalemarkwiegand6468 5 жыл бұрын
5:36 i thought 9/-9 is -1
@dalemarkwiegand6468
@dalemarkwiegand6468 5 жыл бұрын
Nevermind its subtraction
@juliak5980
@juliak5980 5 жыл бұрын
1+1=2! :D Is It Correct??? ;)
@brianmclogan
@brianmclogan 5 жыл бұрын
yes
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan Do+you+like+cheese=?
@juliak5980
@juliak5980 5 жыл бұрын
I'm in 4th Grade and this is so confusing. 😬
@brianmclogan
@brianmclogan 5 жыл бұрын
I teach this in high school so you have time
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan Do you like cheese tho :o
@bdxxmarsxx3881
@bdxxmarsxx3881 Жыл бұрын
@@brianmclogan i am actually in 7th grade and you taught this in highschool. This is what i am doing right now.
@elkaysmith1874
@elkaysmith1874 6 жыл бұрын
um this is wrong the coordinates should be (1,-1)
@brianmclogan
@brianmclogan 6 жыл бұрын
where is the mistake? I am not seeing it
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan 4
@abshiroosman7942
@abshiroosman7942 6 жыл бұрын
I have question teacher
@brianmclogan
@brianmclogan 6 жыл бұрын
what's up
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan The question is do you like cheese?
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@AR - 08RM - Ingleborough PS (1491) lmaoo💀
@jovanylara4336
@jovanylara4336 4 жыл бұрын
Do you like cheese?
@amilestrawder3437
@amilestrawder3437 6 жыл бұрын
U make no sense
@brianmclogan
@brianmclogan 6 жыл бұрын
do you have a question you would like to ask or just leave it at that?
@pranathibokam2584
@pranathibokam2584 6 жыл бұрын
He makes perfect sense.
@NEnigma777
@NEnigma777 6 жыл бұрын
Amile Strawder you’re not paying attention. He explains better than many college math professors
@jovanylara4336
@jovanylara4336 4 жыл бұрын
@@brianmclogan Yes, Do you like cheese?
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