Solve for x
x=\frac{y+8}{12}
Solve for y
y=12x-8
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12x-8=y
Swap sides so that all variable terms are on the left hand side.
12x=y+8
Add 8 to both sides.
\frac{12x}{12}=\frac{y+8}{12}
Divide both sides by 12.
x=\frac{y+8}{12}
Dividing by 12 undoes the multiplication by 12.
x=\frac{y}{12}+\frac{2}{3}
Divide y+8 by 12.
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