1. The problem statement, all variables and given/known data I have this circuit: http://img59.imageshack.us/i/doublebattery.png/ 2. Relevant equations what are the currents I1, I2, and I3 and the power being delivered on each resistor 3. The attempt at a solution i've tried doing 3 equations using the kirchhoff rules but i end up with the wrong answer...my equations were 21 - I1R1 - I3R = 0 15 - I2R2 - I3R = 0 I3 = I1 + I2 what am i doing wrong?