Solve for x
x=-4y
Solve for y
y=-\frac{x}{4}
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5x=-20y
Subtract 20y from both sides. Anything subtracted from zero gives its negation.
\frac{5x}{5}=-\frac{20y}{5}
Divide both sides by 5.
x=-\frac{20y}{5}
Dividing by 5 undoes the multiplication by 5.
x=-4y
Divide -20y by 5.
20y=-5x
Subtract 5x from both sides. Anything subtracted from zero gives its negation.
\frac{20y}{20}=-\frac{5x}{20}
Divide both sides by 20.
y=-\frac{5x}{20}
Dividing by 20 undoes the multiplication by 20.
y=-\frac{x}{4}
Divide -5x by 20.
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Limits
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