Question 57839
Solve for n:
{{{C = nE/((R+nr))}}}  Multiply both sides by (R+nr)
{{{C(R+nr) = nE}}} Simplify the left side.
{{{CR+Cnr = nE}}} Subtract Cnr from both sides.
{{{CR = nE-Cnr}}} Factor the n.
{{{CR = n(E-Cr)}}} Divide both sides by (E-Cr)
{{{CR/(E-Cr) = n}}} or {{{n = CR/(E-Cr)}}}