Given 4= - 2/3 x, the 1st step is to cross multiply;
[tex]\begin{gathered} 4=\frac{-2}{3}x \\ 12=-2x \end{gathered}[/tex]We'll then divide both sides of the equation by 2;
[tex]\begin{gathered} \frac{12}{2}=\frac{-2}{2}x \\ 6=-x \\ \text{Multiplying both sides by -1, we'll then have;} \\ x=-6 \end{gathered}[/tex]Therefore, x = -6
