Solve for x
x=-\frac{y}{3}+14
Solve for y
y=42-3x
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-3x=y-42
Swap sides so that all variable terms are on the left hand side.
\frac{-3x}{-3}=\frac{y-42}{-3}
Divide both sides by -3.
x=\frac{y-42}{-3}
Dividing by -3 undoes the multiplication by -3.
x=-\frac{y}{3}+14
Divide y-42 by -3.
y=-3x+42
Add 42 to both sides.
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