Solve for v
v=\frac{1}{2}=0.5
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2=4v
Variable v cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by v.
4v=2
Swap sides so that all variable terms are on the left hand side.
v=\frac{2}{4}
Divide both sides by 4.
v=\frac{1}{2}
Reduce the fraction \frac{2}{4} to lowest terms by extracting and canceling out 2.
Examples
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Linear equation
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Matrix
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Simultaneous equation
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Integration
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Limits
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