1. The problem statement, all variables and given/known data ------------------ 2. Relevant equations V=IR KCL/Node Voltage 3. The attempt at a solution These are the solutions to some old homework assignments that my teacher posted, but I am very confused on the way he labeled his current flows in these problems. In the first picture he says that the current from the left branch is flowing into the node. In the second picture he is saying that all currents are flowing out of the nodes. The polaritites in both circuits are the same. Why is it that in the first picture we have current flowing into the node? That would mean current is flowing - to + which is not the conventional way of doing it. Does it have something to do with the dependant current source? Do we treat those differently? Also, why are the polarities on the resistor + to - from left to right? It seems that in other homework problems it's the same. The source is always the same orientation + - top to bot but the current sometimes goes into the node and sometimes it goes out. HOW DO YOU CHOOSE!?!? WHAT IS CORRECT?!?!? If you choose wrong then your KCL will be different in both cases and you will get a wrong answer.