Question

33 = -2a + 7

Explanation:

Step1: Subtract 7 from both sides

$33 - 7 = -2a + 7 - 7$
$26 = -2a$

Step2: Divide by -2 on both sides

$\frac{26}{-2} = \frac{-2a}{-2}$

Answer:

$a = -13$