Solve for x
x=-\frac{5y}{3}+70
Solve for y
y=-\frac{3x}{5}+42
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300x=21000-500y
Subtract 500y from both sides.
\frac{300x}{300}=\frac{21000-500y}{300}
Divide both sides by 300.
x=\frac{21000-500y}{300}
Dividing by 300 undoes the multiplication by 300.
x=-\frac{5y}{3}+70
Divide 21000-500y by 300.
500y=21000-300x
Subtract 300x from both sides.
\frac{500y}{500}=\frac{21000-300x}{500}
Divide both sides by 500.
y=\frac{21000-300x}{500}
Dividing by 500 undoes the multiplication by 500.
y=-\frac{3x}{5}+42
Divide 21000-300x by 500.
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