Can someone please show me the steps on how to get the right answer? I would greatly appreciate it. Thanks so much!

4) AVL - Diagramming Given both of the following AVL trees below. Perform the specified operation and draw the new tree in the box to the right of the original tree. If you want to show multiple steps in a box, circle the final tree. If needed in an operation, use the predecessor. Ar add (10) 50 40 60 30 45 70 20 B) remove (90) 70 50 80 30 75 90