Question

9.
(9x +42) – 5x = -70

Answer 1

X= -28
(9x+42)-5x=-70
9x+-5x+-5x=-70
(9x+-5x)+(42)=-70
4x+42=-70
4x+42=-70
4x+42-42=-70-42
4x=-112
4x/4=-112/4
x=-28

Answer 2

x = -28

Explanation:

(9x+42) - 5x = -70

add 5x to both sides

9x + 42 = -70 + 5x

subtract 42 from each side

9x = -112 + 5x

subtract 5x from each side

4x = -112

Divide each side by 4

x = -28