Answer:
Step-by-step explanation:
-12n - 12 = -10 - 30n - 2
-12n - 12 = -12 - 30n
-12n = -30n
-12n +30n = 0
18n = 0
n = 0
-12n- 20 = -10 - 30n - 2
-12n - 20 = -12 - 30n
18n - 20 = -12
18n = 18
n = 1
