Answer:
6. Z= -11
7. N= 15.25
Step-by-step explanation:
6. Subtract 10 from each side to get Z+3= -8
Then Subtract 3 from each side to get Z= -11
7. Subtract 4 from each side to get 3/4 n= 16
Then Subtract 3/4 to get N= 15.25
z + 3/10 = 2
z+3 = 2 × 10
z +3 = 20
z = 20-3
z = 17
(3/4)n + 4 = 20
n + 4 = 20 ÷ 3/4
n + 4 = 20 × 4/3
n + 4 = 80/3
n = 80/3 -4
n = 80-12/3
n = 68/3
