So I got this homework to do, and I've pretty much figured it all out using a bus diagram, except for one part. I don't know how to approach Resistors 7 through 9 and 10 through 12. The only idea that I have is that they equalize between 7 and 8, and 10 and 11.
This is the only idea I have as far as a bus diagram:
One last thing: Just a check on how to find the currents at E and D: Do I just add up all the currents traveling along each separate loop?
Ohm's Law: V=IR
The Attempt at a Solution
I do not know where to begin