diagram for delete on a parent node

Took a break from code, came back to my binary tree.  I did my get, and started the remove/delete and got a little stuck. 

The parent node,  which I consider the first branch from the root_node seems to be the biggest hurdle. 

Took me a bit, but I came up with this diagram to show myself where I needed to go for the new parent node.  I'll put the code up when I've written it.  Here's my pic, with some logic written in.


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