9. solve. 7(2y - 8) = -42

Explanation:

Step1: Divide both sides by 7

$\frac{7(2y - 8)}{7}=\frac{-42}{7}$ $2y-8=-6$

Step2: Add 8 to both sides

$2y-8 + 8=-6 + 8$ $2y=2$

Step3: Divide both sides by 2

$\frac{2y}{2}=\frac{2}{2}$ $y = 1$

Answer:

$y=1$