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