How to delete pictures/albums that were put onto iPhone from the computer?

I plugged my iPhone into my laptop and imported some albums that were on my laptop onto my phone, and now I can't remove them from my phone. How do I delete them or make them deletable?

I'd go back on the laptop and delete them through there. I think there's a box you can uncheck hat says sync pictures or something

In order to delete pictures from your iPhone that were from the computer, you will have to sync your phone into iTunes on the same computer you put the pictures onto the phone from and then reselect the ones you would like to be on your phone by selecting pictures under your phone summary in iTunes. Also, you could backup your phone to iTunes, then restore your phone by clicking restore in the iTunes summary page for your phone when plugged in and then transferring what you backed up from iTunes back on to your phone. Hope this helps!