1. The problem statement, all variables and given/known data We have the circuit in the figure.I have to find Io. 2. Relevant equations Mesh current analysis. 3. The attempt at a solution The first mesh is i1 and the second one is i2. We have a supermesh here.Supermesh results when two meshes have a (dependent or independent)current source in common.We exclude the current source. We have -6j+3j*i1- j*i2+i2=0 .We also have i2=i1+ 0.5*Io But I guess I need a third equation to solve this and to find Io,since we have three unknown currents.Whats that third equation?