Hello there, LGoetz21.
The article you came from indicates why you are unable to "hide":
iTunes Store: Hiding and unhiding purchases
http://support.apple.com/kb/HT4919
Specifically in the note near the end of the document:
Note: If the item you are unhiding is not already downloaded or installed on your device, it will begin downloading automatically. You currently cannot hide purchases on devices using iOS 6.
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro D.