Solve for x
x=-\frac{y}{20}+\frac{579}{400}
Solve for y
y=\frac{579}{20}-20x
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400x=579-20y
Subtract 20y from both sides.
\frac{400x}{400}=\frac{579-20y}{400}
Divide both sides by 400.
x=\frac{579-20y}{400}
Dividing by 400 undoes the multiplication by 400.
x=-\frac{y}{20}+\frac{579}{400}
Divide 579-20y by 400.
20y=579-400x
Subtract 400x from both sides.
\frac{20y}{20}=\frac{579-400x}{20}
Divide both sides by 20.
y=\frac{579-400x}{20}
Dividing by 20 undoes the multiplication by 20.
y=\frac{579}{20}-20x
Divide 579-400x by 20.
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