deleting multiple songs on Apple's music app

Hi all!
I've got what may seem like a stupid question. I'm running the latest ios. on my ipad, and I have music on my ipad. However, I've bought some albums that have acoustic versions of other songs on them, (it was cheaper to get the whole thing, rather than song by song), & I'd like to get rid of the acoustic versions, and free up space on my ipad. My question is: how can I delete them all at once? I don't have access to a computer, so going through itunes isn't an option. I've tried getting rid of songs indiviually, but they seem to want to stick around. Any help would be appreciated! Thank you in advance!