Question

If a = 2b + 12, then -2a =

answer choices:
a.) -6 - b
b.) 24 - 4b
c.) -2b - 24
d.) 6 - b
e.) -4b - 24

Answer 1

e.) -4b -24

Explanation:

Substitute the expression for "a" into the expression -2a. Make use of the distributive property to eliminate parentheses.

... -2a = -2(2b +12) = -4b -24