Solve for x
x=\frac{5-y}{6}
Solve for y
y=5-6x
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720x=600-120y
Subtract 120y from both sides.
\frac{720x}{720}=\frac{600-120y}{720}
Divide both sides by 720.
x=\frac{600-120y}{720}
Dividing by 720 undoes the multiplication by 720.
x=\frac{5-y}{6}
Divide 600-120y by 720.
120y=600-720x
Subtract 720x from both sides.
\frac{120y}{120}=\frac{600-720x}{120}
Divide both sides by 120.
y=\frac{600-720x}{120}
Dividing by 120 undoes the multiplication by 120.
y=5-6x
Divide 600-720x by 120.
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