Solve for x
x=\frac{y-20}{6}
Solve for y
y=6x+20
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6x+20=y
Swap sides so that all variable terms are on the left hand side.
6x=y-20
Subtract 20 from both sides.
\frac{6x}{6}=\frac{y-20}{6}
Divide both sides by 6.
x=\frac{y-20}{6}
Dividing by 6 undoes the multiplication by 6.
x=\frac{y}{6}-\frac{10}{3}
Divide y-20 by 6.
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