Electric Circuit to solve with nodal analysis

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adashiu
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Can someone solve this circuit

Circuit schematic with a 7 V source and 4 Ω resistor on the left, a 3 V source at the top middle, and resistors 3 Ω, 2 Ω and 6 Ω; node voltage v across the 3 Ω resistor and current i through the 2 Ω resistor are labelled.


Find v and i in the circuit.

I know that we have to make somethng with supernode, but where the supernode is here? How to develop this problem? Please help me :)

Btw it is nice forum, today i have found that. I hope I will be able to help you in other engeenering topics. Greets