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Solve for I
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Solve for E
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En=I\left(R+\frac{V}{n}\right)n
Multiply both sides of the equation by n.
En=I\left(\frac{Rn}{n}+\frac{V}{n}\right)n
To add or subtract expressions, expand them to make their denominators the same. Multiply R times \frac{n}{n}.
En=I\times \frac{Rn+V}{n}n
Since \frac{Rn}{n} and \frac{V}{n} have the same denominator, add them by adding their numerators.
En=\frac{I\left(Rn+V\right)}{n}n
Express I\times \frac{Rn+V}{n} as a single fraction.
En=\frac{I\left(Rn+V\right)n}{n}
Express \frac{I\left(Rn+V\right)}{n}n as a single fraction.
En=I\left(Rn+V\right)
Cancel out n in both numerator and denominator.
En=IRn+IV
Use the distributive property to multiply I by Rn+V.
IRn+IV=En
Swap sides so that all variable terms are on the left hand side.
\left(Rn+V\right)I=En
Combine all terms containing I.
\frac{\left(Rn+V\right)I}{Rn+V}=\frac{En}{Rn+V}
Divide both sides by V+Rn.
I=\frac{En}{Rn+V}
Dividing by V+Rn undoes the multiplication by V+Rn.