How do I repair an interior door that will not stay open?

[deviddiya]

The problem is, I try to open the door(s) all the way, but they try to swing back slowly to close. I need a simple solution to fix the problem.
Thanks for you help.
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[masona]

Either door hinges not fitted correctly or door frame out of plumb

You may get away with pinching the hinges pin butt with a pliers

 

[HERTS P&D]

Or remove the over head door closer.

Andy