Question

f) \\(\frac{1}{2}(-4 + x) = -12\\)
h) \\(4(x + 3) = 4x + 12\\)

Explanation:

Step1 (for f)): Multiply both sides by 2

$-4 + x = -24$

Step2 (for f)): Add 4 to both sides

$x = -20$

Step1 (for h)): Expand left side

$4x + 12 = 4x + 12$

Step2 (for h)): Simplify equation

$0 = 0$ (always true)

Answer:

x = -20 (for f)), All real numbers (for h))