use the substitution method to solve

Question

7x+5y=-26
x=28-6y

Answer 1

I know this!
Put it in for x.

So 7(28-6y) +5y=-26

use that to get y, then plug your answer for y into one of the equations to get x

Answer 2

okay so then 196-42y+5y=-26
then combined like terms so
196+37y=-26
37y=-222
y=-6 is this part correct?

Answer 3

solve by using the substitution method.

5x-3y=-25
4x+34=y

Answer 4

m-3n=8