Question

Use substitution to solve each system 2y-2=4x y=-x+4

Answer 1

X=3 y=7
...................

Answer 2

x = 3

y = 7

Explanation:

First we need to substitute the equation from

2y-2=4x to...

2x + 8 - 2 = 4x.

Now we simplify.

8 - 2 = 6. 4x - 2x = 2

Now we have
`(6)/(2) = (2x)/(2)` to find x alone. so
`3 = x`.

Now we need to find y. So we factor in the x.

y = 3 + 4

y = 7.

So

x = 3 and

y = 7