Question

$\frac{x}{2}-18=-28$
$-4a + 12=60$

Explanation:

Step1: Solve for $\frac{x}{2}$

Add 18 to both sides:
$\frac{x}{2} = -28 + 18$
$\frac{x}{2} = -10$

Step2: Solve for $x$

Multiply both sides by 2:
$x = -10 \times 2$
$x = -20$

Step3: Solve for $-4a$

Subtract 12 from both sides:
$-4a = 60 - 12$
$-4a = 48$

Step4: Solve for $a$

Divide both sides by $-4$:
$a = \frac{48}{-4}$
$a = -12$

Answer:

$x = -20$, $a = -12$