Now what I did was calculate the total current*resistance in the loops and equaled them to 0 as so:

IA(2k) + IA(2k) + IA(1k) + IB(3k) + IC(1K) = 0 (i can plug in I1 and I2 and solve)

However I am not completely sure how to solve this out after. Am I taking the right steps? Thanks