I have a small circuit that's giving me a headache for one of my lab assignments. I've gone through it with node voltage analysis for the previous lab with confirmed results, but I'm stuck on completing the mesh current analysis of the same circuit.

Pasted the circuit above. We need to determine the current I and voltage U. They should be I = 2.67mA and U = 2.67V.

I think I've gotten the mesh equations right, with I1(left) = 41mA, I2(top) = 15mA and I3(corner) = 21mA

but I don't really know where to go from here to get the right result up top.

Would very much appreciate pointers

//Bryne