Question

1. $z = -4a - 4$, for $a$

Explanation:

Step1: Isolate the term with $a$

Add 4 to both sides:
$z + 4 = -4a$

Step2: Solve for $a$

Divide by $-4$ on both sides:
$a = \frac{z + 4}{-4}$

Step3: Simplify the expression

Rewrite the fraction:
$a = -\frac{z + 4}{4}$ or $a = -\frac{z}{4} - 1$

Answer:

$a = -\frac{z + 4}{4}$ (or equivalent form $a = -\frac{z}{4} - 1$)