How to delete pictures off iphone through computer?

A while ago i had sank my iphone 4 and i saw that it added picture albums. I tried to delete them and it wouldnt let me. So i have like 3, 000 pictures that i want to delete! Please help! And make what your saying clear, i'm a blonde.

If you have a mac, it's easy. Just open iphoto, connect your phone, then just delete them all. You can view a video or google search on how to do that. If you don't have a mac… I'm not so sure…

Assuming that you have backup those pictures on your mac or pc, just open your iTunes and go to your photo section and uncheck all the albums you want removed from your iPhone, then sync it.

If those albums were created on the iphone, tap edit on the upper right corner to delete them.