Solve a system of linear equations using substitution

👉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
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✅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...
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👨‍👩‍👧‍👧 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.freemathvi...
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This man saved me from failing so many tests 😭

[@Ally.Dance.]

Currently studying for a test 😂

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[@justfireeditz710]

Me too 😅

[@KaiChi008]

Same here

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coming right back at ya lol

[@Fireyone88]

Thanks so much, my teacher lacks in the teaching part and gives homework, now I understand it and can actually do it

[@minecarts1789]

SAME DUDE

[@Ally.Dance.]

Frr

[@andrewm6244]

The one dislike is elimination

[@trishaparker2640]

Bro literally better than my math teacher

[@manuelbracamonte4057]

i just grew a braincell watching this

[@jackrichardson2840]

you help so much

[@Suzuya144]

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[@AmenTarik]

Bro just unlocks to me other dimensions in my maths test thanks❤😊😊,and 2024 mary Christmas

[@geranna6284]

What if both equations are already isolated and are X how do I substitute them?

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I want to be in is class

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You teach so well! Thank you for your help :D

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I have exam tomorrow, wish me luck!

[@BenkMSM]

1 year later how was the exam cuh

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Fr

[@kikianaleeu1649]

Mr Brian mclogan how did you get the -10y?? Am confused about that part

[@edited115]

-12y + 2y

[@brianjeon7658]

Hey that really helped me for my homework

[@MsMillerComedian.]

Wow u saved me. Good explaining on substitution method!!

[@user-cs8mr4yo6k]

Thank you so much for this video. This helped me & my 8th grader SOOO MUCH!! Thank you!!

[@mthembumvelasenosy4471]

Thankyou for helping me I wouldn't have passed my exam without your teaching 😊😊

[@hugogutierrez5161]

Thank you. Where I was learning this was about to make my head explode because the explanation was horrible but you just helped me

[@boniquer931]

me: finally i found this video been looking for this for weeks. computer: crashes :/

[@AcunaDanaya]

What happens if I don't have a variable that has a variable of 1 or -1?

[@jaydondevaney4997]

Thanks so much bro just saved my life

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thank you

[@megatrongriffin4383]

Shout out to Bryan for carrying my grades fr

[@megatrongriffin4383]

My bad i meant Brian🙏

[@Yukki._.]

Man that went wayyy too fast when actually solving it 💀😭

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Mr mclogan you have saved me from failing my math class my teacher is ms spencer if you remember her. She said she met you.

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Omg Ms Spencer??? Tell her I said hi my name is Alex btw

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I❤you my best math solver teacher ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤ Please keep it up like the best one, Ike you're the only one in the whole world ❤❤❤❤❤❤

[@lorenaesquivel9953]

Thank you thank you thank youuuuu! I did some exercises to see if I understood, i got them all right, and now I’m ready for my exam!!!

[@kittyhurdle9224]

My math teacher isn't very good at actually teaching so this is SO helpful!! I'm now going to pass my exams!!!

[@jessicarodrigues6175]

did u pass?

[@naeemshah2231]

Nice

[@minecarts1789]

Thank you so much ily

[@FindTheLongestWord]

But sir, what if there are no variables with coefficients of 1 or -1? And have to use substitution?

[@bradenalbertson6367]

there are 2 other methods, graphically and elimination, let me know if this helped!

[@brianjeon7658]

What grade you teaching

[@exaktlyhq]

where did the subtraction icon come from

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ty

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Thank you 💛 देव तुमचं भल करो.

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[@kirazild]

why did you subtract 3 on both sides?

[@trinitytoyota1085]

Everything you do on one side you do the same on the other side

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I love you

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Bro how can I solve (X+2y=4 (2x-y=3 😭

[@alenietouh4789]

Holy shit, I'm gonna lose that exam tomorrow

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Did you fail😭

[@alenietouh4789]

@@toefungus4575 I actually passed, barely tho

[@TPSBellingham]

I got an exam next week, this is make it or break it for me

[@alenietouh4789]

@@TPSBellingham you can make it bro, I did it and you can too. I also have an exam tomorrow actually, this time about logarithms and exponentials and other shit but I have trust in you and in myself

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what happened to your head?

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I love you