Hello. This is a strange problem that I ran into in my homework. I did not use one of the resistors in the second loop. I don't think this is correct and I am really confused. I have no idea how else I could set this up to solve for the needed variables. Find Vs and Is, if V2 = 20V, R1 = 6K, R2 = 10K, and R3 = 2K. Here is what I did: If it is wrong; how should I set this up correctly?