Answer:
x = -4
Step-by-step explanation:
First we multiply -4 and 2x to get -8x.
Then we multiply -4 and -1 to get 4.
We then add 9 and 4 to get 13.
Your equation should now look like this: 13-8x= 45
We now subtract 13 on both sides to get 32.
Finally, we divide -8 and 32 to get our final answer:
x= -4
