1. The problem statement, all variables and given/known data I have this diagram which asks me to find IL using the diagram. http://img183.imageshack.us/img183/6171/diagramq.jpg [Broken] 2. Relevant equations According to Kirchhoff's current law, the sum of all currents entering and leaving a node must equal zero. 3. The attempt at a solution I examined the currents that were entering and leaving each node, thus I came up with 8 equations (from the 8 nodes). I think that I am on the wrong track since I cannot find a way of solving 8 unknown variables since not all currents are given on the diagram. Any ideas on how to approach this problem? Thank you in advance.