Answer:
x = -4/3
Step-by-step explanation:
9x = -12
Step 1: Divide 9 by both sides to isolate the variable, x.
9x / 9 = -12 / 9
(5⅔)/4 = (17/3)/4 = 17/12
16 days
108/9 is 12. The late fee is 12¢ per day. 16x12 is 192.