Answer:
63
Step-by-step explanation:
multiply the side by 9
Multiply -1 by -7
-9x^3 + 8x^2 - 7x/6 + 7
Answer:
I'm guessing the opposites are negative and positive so whenever you add two opposite numbers it will always be 0. The answer will always be 0.
For example:
-3 + 3 = 0
4 - 4 = 0
-15 + 15