\{ \frac { x } { 7 } = \frac { y } { 5 }
Solve for x
x=\frac{7y}{5}
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5x=7y
Multiply both sides of the equation by 35, the least common multiple of 7,5.
\frac{5x}{5}=\frac{7y}{5}
Divide both sides by 5.
x=\frac{7y}{5}
Dividing by 5 undoes the multiplication by 5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Limits
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