Question

write an expression that is equivalent to -3x - 9 + 15 - 2x. -3x - 9 + 15 - 2x = x + ?

Explanation:

Step1: Combine like - terms of x

Combine $-3x$ and $-2x$. Since $-3x+( - 2x)=(-3 - 2)x=-5x$.

Step2: Combine constant terms

Combine $-9$ and $15$. Since $-9 + 15=6$.

Answer:

$-5x+6$