1. The problem statement, all variables and given/known data http://i134.photobucket.com/albums/q100/megajette2/Resistornetwork.png 2. Relevant equations parallel resistors share the same nodes or terminals and simplify to (a*b)/(a+b). in series resistors values are added. 3. The attempt at a solution http://i134.photobucket.com/albums/q100/megajette2/Resistornetworkwork-1.png Not sure what I'm doing wrong. I tried doing it other ways but my final answer doesn't come out right.