Solve for x
x=\frac{205-y}{3}
Solve for y
y=205-3x
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60x=4100-20y
Subtract 20y from both sides.
\frac{60x}{60}=\frac{4100-20y}{60}
Divide both sides by 60.
x=\frac{4100-20y}{60}
Dividing by 60 undoes the multiplication by 60.
x=\frac{205-y}{3}
Divide 4100-20y by 60.
20y=4100-60x
Subtract 60x from both sides.
\frac{20y}{20}=\frac{4100-60x}{20}
Divide both sides by 20.
y=\frac{4100-60x}{20}
Dividing by 20 undoes the multiplication by 20.
y=205-3x
Divide 4100-60x by 20.
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