1. The problem statement, all variables and given/known data I have to calculate the current through each branch - I1, I2 and I3. 2. Relevant equations 3. The attempt at a solution The only reason I'm having trouble with this problem is because the voltage source is in the middle and I'm a little confused. I am struggling even to add up the resistances. Are the 2, 5, and 4Ω resistors in series with each other? Do I just add them all up to get the total resistance? After I have the total resistance, I calculated the supply current (I2) by just using ohms law. How is it I calculate I1 and I3? Is it current division?