Can you help me understand this Node Analyzing Method in Thevenin Norton Circuits
The answer is correct, vt = 10 V, but the equation is wrong.
That should be (vt + 160 i) / 80 + vt / 80 + vt / 40 - 1 = 0.
The circuit can be simplified by Thevenin Norton theorem and that may the intention of who made this problem.