Solve for y
y=\frac{x}{120}
Solve for x
x=120y
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x=120y
Multiply both sides of the equation by 40.
120y=x
Swap sides so that all variable terms are on the left hand side.
\frac{120y}{120}=\frac{x}{120}
Divide both sides by 120.
y=\frac{x}{120}
Dividing by 120 undoes the multiplication by 120.
x=120y
Multiply both sides of the equation by 40.
Examples
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Matrix
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Simultaneous equation
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Limits
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