Solve for x
x=\frac{y}{4}
Solve for y
y=4x
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4x=y
Combine 7x and -3x to get 4x.
\frac{4x}{4}=\frac{y}{4}
Divide both sides by 4.
x=\frac{y}{4}
Dividing by 4 undoes the multiplication by 4.
4x=y
Combine 7x and -3x to get 4x.
y=4x
Swap sides so that all variable terms are on the left hand side.
Examples
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Matrix
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Simultaneous equation
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Limits
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