Solve for x
x=-\frac{y}{20}+\frac{5}{2}
Solve for y
y=50-20x
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20x=50-y
Subtract y from both sides.
\frac{20x}{20}=\frac{50-y}{20}
Divide both sides by 20.
x=\frac{50-y}{20}
Dividing by 20 undoes the multiplication by 20.
x=-\frac{y}{20}+\frac{5}{2}
Divide 50-y by 20.
y=50-20x
Subtract 20x from both sides.
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