Question 132611
{{{C=K(Rr/(R-r))}}} Start with the given equation



{{{C=KRr/(R-r)}}} Multiply



{{{C(R-r)=KRr}}} Multiply both sides by {{{R-r}}}



{{{CR-Cr=KRr}}} Distribute



{{{-Cr=KRr-CR}}} Subtract CR from both sides



{{{-Cr=R(Kr-C)}}} Factor out the GCF "R" from the right side



{{{-Cr/(Kr-C)=R}}} Divide both sides by {{{Kr-C}}}



{{{R=-Cr/(Kr-C)}}} Rearrange the equation