Hello, there!
We will use the distributive property to solve this.
First, let's get rid of those parentheses.
9 * x = 9x
9 * -4 = -36
Now, we have 9x - 36 - 6x
Finally, we must combine like terms.
9x and -6x are like terms
9x + (-6x) = 3x
Our final answer is 3x - 36
I hope I helped!
Let me know if you need anything else!
~ Zoe