how do you delete a gmail message on my android lg phone
How do I delete a gmail message on my android
How do I delete a gmail message on my android
And don't be surprised if the email re-apppears. The Gmail app seems to have a knack of deleting the email from th phone but not from the server, so you keep getting deleted emails over and over for a while, until they finally delete from the server (or run past the time that the GMail app is set to store them).
Which is why I use Email - delete the email and it stays deleted.