Solve for x
x=\frac{y-36}{12}
Solve for y
y=12\left(x+3\right)
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12x=y-36
Subtract 36 from both sides.
\frac{12x}{12}=\frac{y-36}{12}
Divide both sides by 12.
x=\frac{y-36}{12}
Dividing by 12 undoes the multiplication by 12.
x=\frac{y}{12}-3
Divide y-36 by 12.
y=12x+36
Swap sides so that all variable terms are on the left hand side.
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