Question

What is the solution to the equation -4(2x + 3) = 2x + 6 - (8x + 2)?

A. x = -10

B. x = -8

C. x = - 5/2

D. x = -4/7

Answer 1

B. x = -8

Explanation:

-4(2x + 3) = 2x + 6 - (8x + 2)

-8x -12 = 2x + 6 - 8x -2

(now, "-8" in both terms is cancelled):

-12 = 2x + 6 - 2

(leave 2x alone in second term):

-12 -6 +2 = 2x

-16 = 2x

-16/2 = x

-8 = x