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## Homework Statement

Hello, I was hoping someone could walk me through the steps to solve this problem:

The power absorbed by the 5Ω resistor is 20W. Find V

http://img191.imageshack.us/img191/6411/14966985.jpg [Broken]

## Homework Equations

V= I x R

P = V

^{2}/R

## The Attempt at a Solution

I first found the voltage across the 5Ω resistor to be 10V using V= I x R and substituting 20W / V for the current. How do I find the total voltage supplied?

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