Format date and subtract business days

I am not the best with formulas and have tried to implement a few ideas that I have read in the community forum here, but with no luck.
Can anyone help figure out what I need to do to this formula to incorporate business days instead of all days?

FORMAT_DATE(SUBTRACT_DAYS({Launch date},7),“MMM DD, YYYY”)

I need this formula column to show the date that is 7 business days before the Launch date.
Thank you!