SOLUTION: Please help me solve this problem: I need to solve the formula below for the indicated variable. E ___________ ___ = I, for R R + r

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Please help me solve this problem: I need to solve the formula below for the indicated variable. E ___________ ___ = I, for R R + r       Log On


   

Question 348803: Please help me solve this problem:
I need to solve the formula below for the indicated variable.
E
_______________ = I, for R
R + r
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
E
_______________ = I, for R
R + r
I(R+r)=E
IR+Ir=E
IR=E-Ir
R=(E-Ir)/I ANS.