The Attempt at a Solution
Hi, I attached a pdf file with the problem. My question is, for the lower right loop, why is the equation that they have valid? I worked the problem, but the equation that I got for that loop is...
voltage of 180 ohm + voltage of 30 ohm + voltage of 12 ohm + voltage of 18 ohm =0. so the voltage for the 180ohm, is -180V, but they have a positive 180V. How did they got that?