Answer
$y=-18$
Work Step by Step
$\begin{align*}
3 \cdot \frac{y}{3}&=-6 \cdot 3&\text{Multiply 3 to both sides of the equation.}\\
y&=-18 &\text{Simplify.}
\end{align*}$
Check the solution by substituting $-18$ to $y$ in the original equation:
$\begin{align*}
\frac{-18}{3}&\stackrel{?}{=}-6\\
-6&\stackrel{\checkmark}{=}-6
\end{align*}$
Thus, the solution is $y=-18$.
