Question

1. Solve the equation 10.5 = 5z
a. -1/2
b. 15.5
c. 2.1
d. 5

2. Solve the equation -9 = 5/17n
a. -153/5
b. -5/153
c. -17/45
d. -45/17

Answer 1

10.5=5z
z=10.5/2=2.1

-9=5/17n
n=-5/(17*9)=-5/153

Answer 2

u wanna get z by itself so u divide 5 on both side so u get z= 2.1

for the second 1 u divide 5/17 on both sides so u get 5/153

Answer 3

okay thanks for explaining :)