
First, simplify

to

/ Your problem should look like:
Second, multiply both sides by 36. / Your problem should look like:
Third, multiply both sides by -1. / Your problem should look like:
Fourth, switch your sides. / Your problem should look like:

Answer:
C) 21
Proper fraction:
22 1⁄5
Improper fraction:
111⁄5
4 x 9 = 36. Plug it back in to see if it is true: 36 / 9 = 4.