Why can't i delete my apps on my iphone 4?

I have an iPhone4, i know, shocking, and when i double tap the home button the little x on top of the apps don't show up. I went to settings>usage and i can see my apps but i don't know what to do from there? I have had my screen fixed before from a pawn shop if that has anything to do with it?

Added (1). I don't know where the list of apps are?
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They might be permanant apps but if they are not then go to the computer to apps and uncheck all the apps you don't want on it.

Huh wad you mean i still don get it! I HAVE THE SAME PROBLEM

You need to hold the apps until they wiggle then the little x should show up. If it does not check you restrictions in Settings you may have it set so you can't delete them this way.

Once you get the x click on the ones you don't want anymore. They will go off the screen. This is also how you make folders. Make the apps wiggle then slide the ones together that you want in a folder and name the folder.

Try holding down the app

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