Solve for the current in each branch of the circuit shown below.

Note:

E1= 10 V

R1= 10 (Omega)

E2= 20 V

E3= 30 V

R2= 20 (Omega)

R3= 30 (Omega)

Here's a (poorly drawn) diagram: http://i449.photobucket.com/albums/q...r/untitled.jpg

Any help would be greatly appreciated.

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Would you go V= IR?

Or take 1 over the resistor values and add them together?