Question

$-16 = 4x - 12$

Explanation:

Step1: Add 12 to both sides

$-16 + 12 = 4x - 12 + 12$
$-4 = 4x$

Step2: Divide by 4 on both sides

$\frac{-4}{4} = \frac{4x}{4}$

Answer:

$x = -1$