Question

which of the following is equivalent to $3(a - 2) - (2a + 4)$?
a. $a + 10$
b. $a + 2$
c. $a - 10$
d. $a \cdot 10$

Explanation:

Step1: Expand the terms

$3(a - 2) - (2a + 4) = 3a - 6 - 2a - 4$

Step2: Combine like terms

$(3a - 2a) + (-6 - 4) = a - 10$

Answer:

c. $a - 10$