Answer:
x=0
Explanation:
First you would distribute -8 to the x and 9 to get -8x-72
Then you would put that into the rest of the equation for -8x - 72 + 6 = -66
Then you combine like terms and get -8x - 66 = -66
Then add 66 to both sides and get -8x = 0
Then divide both sides by -8 and 0 divided by -8 is 0