we have the equation
[tex]-2\left(3x-1\right)=20[/tex]Solve for x
step 1
Divide both sides by -2
[tex]\begin{gathered} \frac{-2\left(3x-1\right)}{-2}=\frac{20}{-2} \\ simplify \\ 3x-1=-10 \end{gathered}[/tex]step 2
Adds 1 on both sides
[tex]\begin{gathered} 3x-1+1=-10+1 \\ 3x=-9 \end{gathered}[/tex]step 3
Divide both sides by 3
[tex]\begin{gathered} \frac{3x}{3}=\frac{-9}{3} \\ \\ x=-3 \end{gathered}[/tex]