How to delete the apps from my IPhone?

I updated my IPhone recently to the iOS 7. 0. 4 and when I tried to delete some unnecessary apps, it wouldn't let me.

You can't delete factory-installed apps - at least not without jailbreaking.

If you are talking about the stock apps, can't.

All other apps can be though.

You can't delete apps that come with the device (Settings, Camera, App Store, etc).

To delete apps, press and hold an app (can be any app) and all your apps will start shaking. There will be little x's on top of the apps that you can delete. Tap on the x and it will ask you if you want to delete it. Tap yes and it will delete!