Find the current in the 2Ω resistor marked A

1. The problem statement, all variables and given/known data

I attached the image, but it’s asking me to find the current in the 2Ω resistor marked A.

2. Relevant equations

V=IR
Loop Rule
Junction Rule: I(in)=I(out(

3. The attempt at a solution

I have no solution. I just conceptually don’t understand how my professor worked this problem and would like any guidance on what he did or some other way to complete this problem.

Attached Images
File Type: png PWORx93.png (78.8 KB)

http://ift.tt/1kl3VjI

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