Question

1. \\ - 12 = 9 + \frac{x}{-3} \\ 18)

Explanation:

Step1: Subtract 9 from both sides

$-12 - 9 = 9 + \frac{x}{-3} - 9$
$-21 = \frac{x}{-3}$

Step2: Multiply by -3 on both sides

$-21 \times (-3) = \frac{x}{-3} \times (-3)$
$63 = x$

Answer:

$x=63$