1. The problem statement, all variables and given/known data For the circuit below find [itex]I_1[/itex] and [itex]I_2[/itex]: http://img155.imageshack.us/img155/8330/chapter2problem84ro6.jpg [Broken] 2. Relevant equations KVL KCL Ohm's Law 3. The attempt at a solution I tried the problem many times, but I always get crazy answers. It seems that every time I need one new equation to have a system of solveable equations, I have to add a new variable and hence I need another equation. It's a vicious cycle that when I get up to 13 variables for all of the V's at the resistors and different I's at nodes 1-4, I get a crazy answer like -1.35 mA for [itex]I_1[/itex]. Does that seem right? Any suggestion on what to do about the one-more variable, one-more equation problem? I tried a super-node between nodes 2 and 3. Didn't help though.