Simplify each expression
$\frac{1}{2} (16 - 4 a) - \frac{3}{4} (12 + 20 a)$

Question

Accepted Answer

$\frac{1}{2} (16 - 4 a) - \frac{3}{4} (12 + 20 a)$ is simplified to $- 1 - 17 a$

For any real numbers $a, b,$ and c:
Property	Addition	Multiplication
Commutative	$a + b = b + a$	$a \cdot b = b \cdot a$
Associative	$(a + b) + c = a + (b + c)$	$(a \cdot b) \cdot c = a \cdot (b \cdot c)$
Identity	$a + 0 = a = 0 + a$	$a \cdot 1 = a = 1 \cdot a$
Inverse	$a + (- a) = 0 = (- a) + a$	If $a \neq 0$ , then $a \cdot \frac{1}{a} = 1 = \frac{1}{a} \cdot a$
Distributive	$a (b + c) = a b + a c and (b + c) a = b a + c a$

Short Answer