How to delete apps of iPhone 4?

I asked this question like 5 min ago but can't figure out how to reply or edit it so I'm just posting another one! I have around 40 apps on my phone and when I hold them down and they begin to shake there's no x to delete any of them, I already know you can't delete the original apps so that's not the problem! I have not been able to delete any apps for some time now over a year I think. Any advice like if I need to change some settings or something? Just dunno why the x never shows up like it should…

I might be wrong but you might have to drag it to the bottom and it'll delete them if not google it it'll be quicker then asking on here