Find the Thevenin equivalent source voltage and resistance for the following circuit.
We have
I_1=\frac{200}{100}=2 A
So,
V_{x-y}=V_{ Th }=2 \times 80-20 \times 2=160-140=120 V
The R_{ Th } voltage source is short circuited.
R_{x-y}=R_{ Th }=32 \Omega