Solve for x
x=-\frac{5y}{2}+21
Solve for y
y=\frac{42-2x}{5}
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2x=42-5y
Subtract 5y from both sides.
\frac{2x}{2}=\frac{42-5y}{2}
Divide both sides by 2.
x=\frac{42-5y}{2}
Dividing by 2 undoes the multiplication by 2.
x=-\frac{5y}{2}+21
Divide 42-5y by 2.
5y=42-2x
Subtract 2x from both sides.
\frac{5y}{5}=\frac{42-2x}{5}
Divide both sides by 5.
y=\frac{42-2x}{5}
Dividing by 5 undoes the multiplication by 5.
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Limits
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