Question

2) 4x + 8y = 20
-4x+2y=-30

Answer 1

(7,-1) or x=7 and y=-1

Explanation:

Fr more explanation comment down below..Hope that helped!!!

Answer 2

(7,-1)

Explanation:

4x + 8y = 20

-4x+2y=-30

Add the two equations together to eliminate x

4x + 8y = 20

-4x+2y=-30

------------------------

10y = -10

Divide each side by 10

10y/10 = -10/10

y=-1

Now we need to find x

4x+8y = 20

4x+8(-1) = 20

Add 8 to each side

4x +8-8=20+8

4x = 28

Divide each side by 4

4x/4 =28/4

x =7