Respuesta :

Answer:

C. 14

Step-by-step explanation:

remove the brackets

(12+8) + (-3n) = -22

20 - 3n = -22

subtract 20 from -22

-3n = -22 -20

-3n = -42

divide each side by -3

-3n ÷ -3 = -42 ÷ 3

n = 14