The circuit of interest is attached. The question is to solve for I1, I2, I3, I4, and V_diode. My question is will the variables come out to be numbers or dependent on R? This is how I did it and it depends on R: I3=0 b/c of the open. The branch with the open is pretty much not there. Thus, KCL: I1+I2=I4 KVL gives 2 equations: 1-2R*I1+R*I2=0 -R*I2-R*I4+1=0 So I guess I1, I2, I4, and V_diode will not solve to be numbers and will depend on R? Or did I do this all wrong?