Solve for x
x=-\frac{y}{7}
Solve for y
y=-7x
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-7x=y
Swap sides so that all variable terms are on the left hand side.
\frac{-7x}{-7}=\frac{y}{-7}
Divide both sides by -7.
x=\frac{y}{-7}
Dividing by -7 undoes the multiplication by -7.
x=-\frac{y}{7}
Divide y by -7.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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