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