Hi, I have been at this problem for days and I can't seem to see what I am doing wrong. Here is the circuit layout along with my work As you can see I am running into problem getting values of current that do not add up equal to zero. My professor has never discussed how adding a wire like this would effect the circuit. I am assuming the other 0.5A go through the wire? I don't know. Everything written in blue is what I have added (and the red arrow).