Solve for y
y=\frac{x^{2}}{7}
Solve for x (complex solution)
x=-\sqrt{7y}
x=\sqrt{7y}
Solve for x
x=\sqrt{7y}
x=-\sqrt{7y}\text{, }y\geq 0
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7y=x^{2}
Swap sides so that all variable terms are on the left hand side.
\frac{7y}{7}=\frac{x^{2}}{7}
Divide both sides by 7.
y=\frac{x^{2}}{7}
Dividing by 7 undoes the multiplication by 7.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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