Lifting Lingo?

[cracka jac]

I was looking at this workout on bodybuilding.com, and for excercises it says:
1x8 10 reps or 1x10 15 reps. I was wondering what exactly this is saying, I undersatnd the reps it is the 1x8 or the 1x10 that I am not folowing. Please nobody rip my head off for such a dumb question I am new at this.

 

[Detroit Muscle]

Cracka - Looks like punctuation is missing as if it is supposed to say 1x8-10 reps or 1x10-15 reps giving a bit of a tolerance to the reps in the set.
If not, then I'm stumped with you.

 

[cracka jac]

Ok thanks yeah I copied it the way it was written. That is a relief then I thought I was just really dumb, thanks for the help.