Respuesta :

Answer:

-5m + 2m

Step-by-step explanation:

Coefficient - number next to the variable

-2m + 5m = 3m

Coefficient: 3

Incorrect

2m + 5m = 7m

Coefficient: 7

Incorrect

5m - 2m = 3m

Coefficient: 3

Incorrect

-5m + 2m = -3m

Coefficient: -3

Correct

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