Solve for y
y=-\frac{x}{3}
Solve for x
x=-3y
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-3y=x
The equation is in standard form.
\frac{-3y}{-3}=\frac{x}{-3}
Divide both sides by -3.
y=\frac{x}{-3}
Dividing by -3 undoes the multiplication by -3.
y=-\frac{x}{3}
Divide x by -3.
x=-3y
Swap sides so that all variable terms are on the left hand side.
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