Respuesta :

Answer:

16m + 13n + 28

Step-by-step explanation:

Combine terms with like variables. Reorder them as such:

12m + 4m + 13n + 37 - 9

Simplify. Combine like terms.

(12m + 4m) + 13n + (37 - 9)

16m + 13n + 28

16m + 13n + 28 is your answer.

~

Answer:

To keep things short, the answer is:

You simplify it has:

16m + 13n + 28