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2. Relevant equations

3. The attempt at a solution

I trying to figure out a thevenin equivalent circuit

I want to calculate the current I so I cant get the resistance for the thevenin equivalent.

Im not 100% sure how to calculate I, can I use KCL on the node under the number -8.7V?

http://img98.imageshack.us/my.php?image=curfc7.jpg

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# Thevenin equivalent circuit

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