Hello and welcome to Apple Support Communities tiger4karma,
I see that you're unable to delete photos from your iPhone. I understand needing to free up space on your iPhone, and I'd be happy to help.
Take a look at the article below that can help with deleting photos from your device.
Delete photos on your iPhone, iPad, and iPod touch
I have also included an article to help with freeing up storage space on your iPhone.
How to check the storage on your iPhone, iPad, and iPod touch
If you go through these articles and the issue remains, respond back with the answers to the following questions.
- If you go to iCloud.com, are you able to delete the photos there, and are they deleted from your iPhone?
- Where are you deleting the photos from? The Photos app, or another app like Messages?
- Which version of software are you using?
Thank you for using Apple Support.