Hi, I need to simplify this circuit of resistors. 1. The problem statement, all variables and given/known data Image of problem: http://img24.imageshack.us/img24/9206/resistor1.jpg [Broken] The Resistor equivalent is 9 ohms, and the solution for R is actually 15 ohms. However, I'm not sure how to get this answer. I think I am getting stuck at the point in my solution on step 4/5 where I seem to have 3 resistors connected to 1 node, but the circuit looks confusing. I attempted to simplify the resistors in step 5 as resistors in parallel, but I don't think I am getting the right answer. 2. Relevant equations parallel = 1/Rtotal = 1/R1 + 1/R2 + 1/R3 Series = Rtotal = R1 + R2 + R3 3. The attempt at a solution Image of my solution: http://img24.imageshack.us/img24/4978/resistor2.jpg [Broken] Any help would be appreciated.