Solve for v
v=\frac{4\left(u-3\right)}{5}
Solve for u
u=\frac{5v}{4}+3
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\frac{5v}{4}+3=u
Swap sides so that all variable terms are on the left hand side.
\frac{5v}{4}=u-3
Subtract 3 from both sides.
5v=4u-12
Multiply both sides of the equation by 4.
\frac{5v}{5}=\frac{4u-12}{5}
Divide both sides by 5.
v=\frac{4u-12}{5}
Dividing by 5 undoes the multiplication by 5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
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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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