I was not able to upload a diagram. we have here:

Two connected boxes with junction A to B down the middle.
First box. 12v on the far left line.
at the top of box1 4ohms.
just under the first top line of box1 current i1 going from left to right.
also in the first box current i3 running from top to bottomnext to the middle line.
the loop in box1 goes clockwise.

along junction A to B (the middle line) is 6 ohms.

in box 2...
top line has 8ohms
under top line current i2 runs right to left.
on the far right line is 9v
the loop in box 2 also turns clockwise.

Question: Using Kirchoff's rule, find the current in each resistor and the potential difference Vab.

Thank you. Please explain clearly. This is a structured physics 2 problem

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