Question

(2x+y+3)+(5y+y-1) ???????

Answer 1

Olá,

(2x+y+3)+(5y+y-1) =
(2x+y+3)+(6y-1) =
2x+y+3+6y-1 =
2x+y+6y+3-1 =
2x+7y+2

Resposta:

2x+7y+2