Answer:
-16x - 28
Step-by-step explanation:
We have 7 - 7 * (5 + x) - 9x.
First, we take care of the parentheses, which means we need to expand it out. Remember that in expanding out parentheses, we multiply the outside number (-7 in this case) by each of the inside terms (5 and x) and add those together:
-7 * (5 + x) = -7 * 5 + -7 * x = -35 - 7x
Put this back into the original equation:
7 + -35 - 7x - 9x = -16x - 28
Thus, our simplification is -16x - 28.
<em>~ an aesthetics lover</em>
