Respuesta :

Answer:

9b+3

Step-by-step explanation:

5b-2+4b+5

Add b's

9b

Then (5-2)

9b+3

The answer is 9b + 3 the reason why is because 5b and 4b have the same variable so you add them because the + is next to the 4b and then -2 + 5 is 3