Respuesta :

Answer:

3m+12

Step-by-step explanation:

Answer:

3m + 12

Step-by-step explanation:

3(m + 4)

3(m + 4) = (3 × m) + (3 × 4)

3m + 12 = 3m + 12

3m + 12

3m = -12

m = -12/3

m = -4