Solving Simultaneous Equations by Substitution

[alizey]

“He was still having breakfast”
Mood.

[zzng]

i wish he was my teacher, to be honest i hate math i am very weak but i understand from him but i dont understand from my sir and he makes math look fun

[midwestrailroadproductions]

There are also systems of equations with 3 variables, Mr. Woo. You get 3 equations, and you can solve by elimination by choosing 2 of either equations. It doesn't matter which one.

[Rana-zhyx]

I don't understand the line 7x + 80 - 16x=53, where did he get the 80 and the 16x from? I got so confused after that.

[kprncess]

Broo if anyone were to cough that much in 2020 ppl would be

[Klaizee]

5:05 where do u get 6 from can u tell me ive got a exam and need helped on this as fast u can thank u

[harshithgowni]

My teacher told me that we have to substitute x in the second equation after finding the value of x.

[midwestrailroadproductions]

I love Wootube, and Woo's Wonderful World of Maths.

[youngcashmoney.]

how did you get x = 3 from -9x = -27 ?

[godchild]

EXCELLENT TEACHER & PATIENT !!! SOME VERY RUDE STUDENTS ..AT FIRST.

[nanyanzidorah]

How do I solve dis sir (x-4y)2 =11 and 3x+8y=11 but 2 is squared

[kiino]

Plesse help me with these

y=3-5x
2y²-x²=1+3xy

[sursattieram]

The camera needs to be closer to the whiteboard.