(9m+6)+(-5m-6)
A) 4m + 12
B) 14m + 12
C) 14m - 12
D) 4m
Simplifying the expression, we get:
(9m + 6) + (-5m - 6) = 9m - 5m + 6 - 6
Combining like terms, we get:
= 4m + 0
= 4m
Therefore, the answer is D) 4m.
To simplify the expression (9m+6)+(-5m-6), we can start by removing the parentheses:
9m + 6 + (-5m) - 6
Next, we can combine like terms:
(9m - 5m) + (6 - 6)
This simplifies to:
4m + 0
And any number plus zero is equal to itself, so the expression simplifies to:
4m
Therefore, the correct answer is D) 4m.