Solve for x
x=\frac{y^{2}}{20}
Solve for y (complex solution)
y=-2\sqrt{5x}
y=2\sqrt{5x}
Solve for y
y=2\sqrt{5x}
y=-2\sqrt{5x}\text{, }x\geq 0
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y^{2}=20x
Multiply 2 and 10 to get 20.
20x=y^{2}
Swap sides so that all variable terms are on the left hand side.
\frac{20x}{20}=\frac{y^{2}}{20}
Divide both sides by 20.
x=\frac{y^{2}}{20}
Dividing by 20 undoes the multiplication by 20.
Examples
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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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