Another Parallel/Series Circuits Question

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The discussion focuses on analyzing a circuit involving resistors R1, R2, R3, R4, R5, R6, and R7, specifically addressing their configurations in series and parallel. The total resistance (Rtot) is calculated using the formulas Rtot = R1 + R2 + R3 + ... + Rn for series and 1/Rtot = 1/R1 + 1/R2 + 1/R3 + ... + 1/Rn for parallel. Key insights include the identification of R4 being in parallel with R1 and the combination of R3 and R2 in parallel, leading to a clearer understanding of the circuit's structure. The discussion emphasizes the importance of redrawing the circuit for clarity and accurate analysis.

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http://imgur.com/6NTHcSe
2. Rtot=R1+R2+R3...+Rn.
2a. 1/Rtot=1/R1 + 1/R2 + 1/R3...+1/Rn. 3. Not sure if I'm starting in the right place. I think R1 and R4 are in parallel combining them to take R4s position. Then R3 and R2 are in parallel.
 
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Redraw the circuit with nodes A anc C on the left.

Some hints..

R5 connects A to C
R4 is indeed parallel with R1 so replace R4 with R4//R1

R3 and R2 are in parallel

No. R4//R1 is in series with R2 and they are both in parallel with R3

R6 and R7 are in parallel.
 

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