This is the problem scanned from my textbook. It's from chapter 4 (KVL, KCL) so it's not super difficult.

Solve for v:

The problem with solving this circuit is that I can't reduce it to simpler forms -- nothing is in series or parallel. I also tried writing 5 equations from KVL for the 5 different loops. I then resorted to using a delta-wye transformation with the top 3 resistors (8, 4, 2 Ohms) -- this method took forever!. This got me the right answer, BUT I have this feeling that there was a much simpler, faster way to solve this problem! It's driving me crazy!