You can't remove tracks from the cloud from the iPhone. Removing from your iPhone will only remove the local copy. Once removed it should then display the cloud icon, showing it is ready to be downloaded again.
Tracks stored locally, as in no cloud icon, can be deleted by swiping.
Michael
thanks. not sure what i'm doing wrong then. I removed them by going into my iPhone's music library via itunes, highlighting everything, then deleting (which just removed the local copy). However for some reason, the cloud copies for all 57 of those albums are not showing up at all in my iCloud library on my iPhone to be redownloaded.