1. The problem statement, all variables and given/known data Find the equivalent resistance between points A and B in the drawing. 2. Relevant equations Rseries = R1+R2+R3... Rparallel: 1/Rp = 1/R1+1/R2+1/R3... 3. The attempt at a solution Reducing it down: 1/8+1/9 = 1/R1 = 4.235 That's in parallel with 20, so: 1/20+1/4.235 = 3.495 ohms 3, 4, and 6 are in series: 3+4+6 = 13 ohms Add that to the previous and you have 16.495 ohms, which is incorrect. Is one parallel and I'm not adding it as such? Or should I combine differently? Thanks so much!