Question

solve: 2a + 4 > 12 \bigcirc \\{a \mid a > 2\\} \bigcirc \\{a \mid a > 4\\} \bigcirc \\{a \mid a > 8\\} \bigcirc \\{a \mid a > 10\\}

Explanation:

Step1: Subtract 4 from both sides

$2a + 4 - 4 > 12 - 4$
$2a > 8$

Step2: Divide both sides by 2

$\frac{2a}{2} > \frac{8}{2}$
$a > 4$

Answer:

$\{a | a > 4\}$