Open the door you wish to adjust and locate the screw for Left and Right Adjustment on the UPPER hinge. (Photo only shows lower hinge)
Grab your screwdriver, and turn that screw COUNTER-CLOCKWISE a half turn to a whole turn. This will push the door towards the opposite side.
Move to the LOWER hinge, locate the same screw, and turn that screw CLOCKWISE a half turn to a whole turn. This will pull it away from the opposite side.
Close the door, and check the evenness of the gap between the two sides. If necessary, open the door and adjust further. If you adjust too far, simply turn the appropriate screw in the opposite direction. Close the door and re-check. Once you are satisfied with the gaps, you’re done!