Answer:
-5m + 2m
Explanation:
Coefficient - number next to the variable
-2m + 5m = 3m
Coefficient: 3
Incorrect
2m + 5m = 7m
Coefficient: 7
5m - 2m = 3m
-5m + 2m = -3m
Coefficient: -3
Correct
8.2m questions
10.8m answers