Question

Which of the following expressions is equivalent to x − 9 − 3x + 2y + 3 − 2?

A.
4x + 2y + 14

B.
3x + 2y + 1

C.
x − 9

D.
−2x + 2y − 8

Answer 1

D.

−2x + 2y − 8

Explanation:

x − 9 − 3x + 2y + 3 − 2 ( collect like terms)

-2x + 2y - 8

x - 3x = -2x

2y = 2y

-9 + 3 - 2 = -8