(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

"Determine the currents in the various branches"

2. Relevant equations

The one I am stuck on is 6.

3. The attempt at a solution

I know there is 3 equations, I believe one of them is I1 + I2= 3 and a second is 4= 2I3+I2 ??

but I am not sure if that is correct or what the 3rd one is. I know I can solve the equations if I know the 3 equations.

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# Linear Equations - Currents

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