Question

1. -10x - 5x = 45

Explanation:

Step1: Combine like - terms

$-10x-5x=( - 10 - 5)x=-15x$. So the equation becomes $-15x = 45$.

Step2: Solve for x

Divide both sides of the equation $-15x = 45$ by $-15$. We get $x=\frac{45}{-15}=-3$.

Answer:

$x=-3$