Solve for u
u=-\frac{2x}{3}
Solve for x
x=-\frac{3u}{2}
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3u=-2x
Subtract 2x from both sides. Anything subtracted from zero gives its negation.
\frac{3u}{3}=-\frac{2x}{3}
Divide both sides by 3.
u=-\frac{2x}{3}
Dividing by 3 undoes the multiplication by 3.
2x=-3u
Subtract 3u from both sides. Anything subtracted from zero gives its negation.
\frac{2x}{2}=-\frac{3u}{2}
Divide both sides by 2.
x=-\frac{3u}{2}
Dividing by 2 undoes the multiplication by 2.
Examples
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Linear equation
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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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