Question

http://prntscr.com/icjktv

Answer 1

@563blackghost

Answer 2

@563blackghost

Answer 3

Change the first equation to an equation of y.

\(\large\bf{y-x=9}\)

Add `x` to each side.

\(\large\bf{y=x+9}\)

Now you would plug this equation into the second equation.

Simplify to find `x`.

\(\large\bf{10+2x=-2(x+9)}\)

Answer 4

10+2x=-2x+(-18)

Answer 5

Right...continue :3

though `-2x+(-18)` is simply `-2x-18`

Answer 6

2x=-2x-28

Answer 7

yup

Answer 8

We need to isolate `x`. So let's get the like terms on one side.

We have the term without variables on one side already, but not the one with terms.

So we would `add 2x to each side`.

\(\large\bf{2x {\color{red}{~+2x}=-2x{\color{red}{~+2x}-28}}}\)

\(\large\bf{4x=-28}\)

Answer 9

Divide each side by 4 to find x.

Answer 10

-7

Answer 11

righty?

Answer 12

yurps :3