Respuesta :

-3(a+1)+6=0

-3a-3+6=0

-3a=-3

a=1

Answer:

-3a-3

Step-by-step explanation:

We cannot solve an expression, we can only simplify

-3(a+1) +6

Distribute the -3

-3a -3 +6

Combine like terms

-3a -3