Respuesta :

Answer:

n = -2

Step-by-step explanation:

-17 = 1 + 6n + 3n

Combine like terms

-17 = 1 +9n

Subtract 1 from each side

-17-1 = 1-1+9n

-18 = 9n

Divide each side by 9

-18/9 = 9n/9

-2 =n

N= -2
First add 6n + 3n = 9n and then subtract 1