I tried but still I cannot understand to solve it. Could you try it if someone is not bussy please? Thanks a lot...

 

hi cik,
Look here.
https://www.allaboutcircuits.com/textbook/direct-current/chpt-10/node-voltage-method/

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hi cik,
Look here.
https://www.allaboutcircuits.com/textbook/direct-current/chpt-10/node-voltage-method/

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Normally I thought i knew node method but i could not apply it on it

 

hi,
Watch this video, the guy is a good teacher.
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hi,
Watch this video, the guy is a good teacher.
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thats great let me watch again and study on it