pic aint working, gonna upload it again. If you just copy & paste the URL it works fine http://cottage7.angelfire.com/Thevenin.png I've been using this site for a while but I finally have a problem that I could not relate to another on this site so here I am! 1. The problem statement, all variables and given/known data I must calculate the current through R1 given: R1=3Ω R2=6Ω R3=3Ω R4=4Ω R5=6Ω R1 MUST be taken out and thevenin's theorem used. 2. Relevant equations http://cottage7.angelfire.com/Thevenin.png 3. The attempt at a solution i can't seem to wrap my head around on how to set up the loops. Pulling R1 (which is at a->b) leaves an ugly looking circuit. Rth =(R2)(R3)/(R2+R3) + R4 + R5 is this thevenin resistance correct? Somebody told me to ignore R5 but that doesn't seem right. Once i find Vth & Rth I imagine the rest will be simple, kirchhoff's rules & linear equations, etc.