1. The problem statement, all variables and given/known data 2. Relevant equations Just KVL and KCL equations 3. The attempt at a solution http://i28.photobucket.com/albums/c216/aldodesigns/problem1.jpg [Broken] I am having troubling setting this up. I'm not even sure if what I did is right so far. Does anyone know how I set up the equation for V4. I am supposed to use nodal analysis but I think I have too many unknowns to be able to find anything. I have VA, VD, but not VB and VC so what do I do?