Solve for x
x=-\frac{9y}{2}+60
Solve for y
y=-\frac{2x}{9}+\frac{40}{3}
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20x=1200-90y
Subtract 90y from both sides.
\frac{20x}{20}=\frac{1200-90y}{20}
Divide both sides by 20.
x=\frac{1200-90y}{20}
Dividing by 20 undoes the multiplication by 20.
x=-\frac{9y}{2}+60
Divide 1200-90y by 20.
90y=1200-20x
Subtract 20x from both sides.
\frac{90y}{90}=\frac{1200-20x}{90}
Divide both sides by 90.
y=\frac{1200-20x}{90}
Dividing by 90 undoes the multiplication by 90.
y=-\frac{2x}{9}+\frac{40}{3}
Divide 1200-20x by 90.
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