Question

What is the value of the x variable in the solution to the following system of equations?

4x + 2y = 12

x - y = 3

zero
−3
3
2

Answer 1

First multiply second equation by 2. Add the first equation and the new equation formed to get x..

Answer 2

Got it... ? o.O

Answer 3

2x-2y=6?

Answer 4

Yeah..Now add the equations...

Answer 5

8x + 4y = 18?

Answer 6

Like this..\[4x+2y+(2x-2y)=12+6\]

Answer 7

Read this before answering..
http://openstudy.com/code-of-conduct @Varuns

Answer 8

Hadn't seen that before. Thanks :) You can eliminate y by multiplying the second equation by -2 and then subtracting Eqn 2 from Eqn 1

Answer 9

@Jessica_Moore Try again....
Never mind.. ;) @Varuns

Answer 10

I got it now, thanks!!