I am trying to solve this setting up equations to each node.
Node A: 10A + i5 = i Node B: i + 4A = i3 Node C: i3 + i2 = i4 Node D: i1 + i4 = i5
I am lost from here. I don't know Vcd or Vad in order to define the respective currents i4 and i5. I am trying to solve this only by using KCL. Are there any other efficient methods?