Answer:
Step-by-step explanation:
Ok so first you move them together so:
9x-3x=-36
6x=-36
x=

Then divide to get: -
6
Your answer would be
A
Answer:
-54
Step-by-step explanation:
8a + 7b + c = 9
We want -6c, but we have c in the equation so multiply by -6
-6(8a + 7b + c) = 9*-6
-48a -42b -6c = -54
Rearranging the equation
-6c - 48a - 42b = -54
Answer:
3
Step-by-step explanation: