Solve for x
x=-\frac{y}{9}+\frac{13}{3}
Solve for y
y=39-9x
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39-y=9x
Multiply both sides of the equation by 3.
9x=39-y
Swap sides so that all variable terms are on the left hand side.
\frac{9x}{9}=\frac{39-y}{9}
Divide both sides by 9.
x=\frac{39-y}{9}
Dividing by 9 undoes the multiplication by 9.
x=-\frac{y}{9}+\frac{13}{3}
Divide 39-y by 9.
39-y=9x
Multiply both sides of the equation by 3.
-y=9x-39
Subtract 39 from both sides.
\frac{-y}{-1}=\frac{9x-39}{-1}
Divide both sides by -1.
y=\frac{9x-39}{-1}
Dividing by -1 undoes the multiplication by -1.
y=39-9x
Divide -39+9x by -1.
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