Respuesta :


(7-b)+(3b+2)

Steps:

Simplify
7-b+3b+2
= 7+-b+3b+2

Combine like terms 
=7+-b+3b+2
= (-b+3b)+(7+2) 
= (-b+3b) + (7+2) 


 2b+9 


Hope I did it right ^.^