So in tabs when theres like, a 7h9p7 or something, what do you do?

I understand the hammer-on part, but do you pluck the 9 before pulling off or just hammer then pull off. Been wondering for a while.

All help is greatly appreciated! ;D
just play the first 7 note, then hammer on to the 9 and pull back off again. You play 3 notes but only pluck the first.