Respuesta :

Answer:

Step-by-step explanation:

-12n - 12 = -10 - 30n - 2

-12n - 12 = -12 - 30n

-12n = -30n

-12n +30n = 0

18n = 0

n = 0

Answer:

-12n- 20 = -10 - 30n - 2

-12n - 20 = -12 - 30n

18n - 20 = -12

18n = 18

n = 1