Multiple Choice
Collect like terms.
--9 + 12m + 12n - 8m + 4n - 7
A) 16m + 4n + 16
B) 4m + 16n - 16
C) 24m - 4n - 16
D) 3m + 4n - 3
Correct Answer:

Verified
Correct Answer:
Verified
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