Solve for x
x=45-y
Solve for y
y=45-x
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5x=225-5y
Subtract 5y from both sides.
\frac{5x}{5}=\frac{225-5y}{5}
Divide both sides by 5.
x=\frac{225-5y}{5}
Dividing by 5 undoes the multiplication by 5.
x=45-y
Divide 225-5y by 5.
5y=225-5x
Subtract 5x from both sides.
\frac{5y}{5}=\frac{225-5x}{5}
Divide both sides by 5.
y=\frac{225-5x}{5}
Dividing by 5 undoes the multiplication by 5.
y=45-x
Divide 225-5x by 5.
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