Question

Which expression is equivalent to 20 — 3(x + 2)?A 3X+ 14B —3x + 14 C -9x + 21 D 17x— 34

Answer 1

We have to simplify the expression:

$20-3(x+2)$

and see which expression is equivalent.

We can do it like this:

$\begin{gathered} 20-3(x+2) \\ 20-3\cdot x-3\cdot2 \\ 20-3x-6 \\ 20-6-3x \\ 14-3x \\ -3x+14 \end{gathered}$

This expression is equivalent to -3x+14.

Answer: -3x+14 [Option B]