Answer:
-3
Step-by-step explanation:
We need to use the distributive property a couple times to expand the parentheses.
Remember that when expanding parentheses, we find the sum of the products of the outside term with each of the inside terms.
5(x - 4) = 5 * x + 5 * (-4) = 5x - 20
-(2x + 5) = -1 * 2x + -1 * 5 = -2x - 5
Now we have:
5x - 20 + 3x - 9x = 6 - 2x - 5 + 8x
Combine all the terms with x:
-x - 20 = 6x + 1
7x = -21
Divide by 7:
x = -21/7 = -3
The answer is thus -3.
<em>~ an aesthetics lover</em>
