13,699 views
0 votes
0 votes
Solve -2(3x - 1) = 20 for x.A) x = 5B) x = -3OC) x = 2D) x = -1

User Vicko
by
2.7k points

1 Answer

23 votes
23 votes

we have the equation


-2\left(3x-1\right)=20

Solve for x

step 1

Divide both sides by -2


\begin{gathered} (-2\left(3x-1\right))/(-2)=(20)/(-2) \\ simplify \\ 3x-1=-10 \end{gathered}

step 2

Adds 1 on both sides


\begin{gathered} 3x-1+1=-10+1 \\ 3x=-9 \end{gathered}

step 3

Divide both sides by 3


\begin{gathered} (3x)/(3)=(-9)/(3) \\ \\ x=-3 \end{gathered}

The answer is option B

User Debi
by
3.2k points