1. The problem statement, all variables and given/known data its about setting a system of equations. . .about "nodes" and how in = out I have the following circuit [PLAIN]http://img820.imageshack.us/img820/8508/circuit.png [Broken] 2. Relevant equations I= v/r 3. The attempt at a solution I get for the first equation in node 1 (the middle circle in the leftmost column) I also know that I = V/R so plugging in values I get: 4 + 2 = I_2 then for the second node (the rightmost) I would have I_2 = I_3 + I_1 = 4 + 2 so does that mean that I_2 is just 6? (the addition of I_1 and I_3) . . .if so then was this problem just a trick problem or something? cause I dont need any system or anything do I??