Solve for x
x=3-3y
Solve for y
y=-\frac{x}{3}+1
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5x=15-15y
Subtract 15y from both sides.
\frac{5x}{5}=\frac{15-15y}{5}
Divide both sides by 5.
x=\frac{15-15y}{5}
Dividing by 5 undoes the multiplication by 5.
x=3-3y
Divide 15-15y by 5.
15y=15-5x
Subtract 5x from both sides.
\frac{15y}{15}=\frac{15-5x}{15}
Divide both sides by 15.
y=\frac{15-5x}{15}
Dividing by 15 undoes the multiplication by 15.
y=-\frac{x}{3}+1
Divide 15-5x by 15.
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