Respuesta :

Answer:

-9a -5b

Step-by-step explanation:

Answer:

-9a - 5b

Step-by-step explanation:

Step 1. Collect like Terms

-13a + 5b + 4a - 10b  (-13a + 4a = -9a)

-9a + 5b - 10b (5b - 10b = -5b)

Leaves you with -9a - 5b