Respuesta :

Answer:

Step-by-step explanation:

1. Subtract 9m from both sides.

6m-6-9m=9m+15-9m

-3m-6=15

2. Add 6 to both sides

-3m-6+6=15+6

-3m=21

3. Divide both sides by -3

-3m/3=21/-3

m= -7