SOLUTION: This problem was on my practice test, and I'm confused as to how to do it.. {{{I = nE/(nr+R)}}} For "n" I don't even know where to begin... Thanks in advance!

Question 13436: This problem was on my practice test, and I'm confused as to how to do it..

For "n"
I don't even know where to begin...
Thanks in advance!
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!

First of all congratulations for writing the equation in correct algebra.com format!!

Next, let's clear the fraction by multiplying both sides of the equation by (nr+R):

The (nr+R) divides out on the right side:

Get all the n terms to the right side by subtracting Inr from each side:

Factor out the n to get the n in one place:

Divide both sides by (E-Ir):

R^2 at SCC

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