Multiple Choice
(9m + 6) + (–5m – 6)
A. 4m + 12
B. 14m + 12
C. 14m – 12
D. 4m
Expanding the expression, we get:
(9m + 6) + (–5m – 6) = 9m + 6 – 5m – 6
Simplifying further, we combine the like terms:
= (9m – 5m) + (6 – 6)
= 4m + 0
= 4m
Therefore, the answer is (D) 4m.