1. The problem statement, all variables and given/known data Find V1 and V2 by Nodal Analysis 2. Relevant equations 3. The attempt at a solution In order to find V1 and V2, I will have to define voltages at node 1 and node 2 as Vx and Vy, so that when I apply KCL at node 1, I will get: (Vx-240)/3 + (Vx-Vy)/6 + 10=0 While there is a 30 Ohm resistor at node 2 where I can label the voltage Vy, where should I label the voltage Vx when there is no element? Is this the right way to label the voltage Vx: And if it is the right way, what is the logic?