Converting weeknumber to data


I am looking for a way to convert a weeknumber back to a date.

I am taking a start date and adding x weeks to the date and need to convert back to a date. I currently just convert to a date and multiply by the number of weeks. And this works ok.

Any tips is appreciated.


Please have a look in section 2 of the attached document.
Maybe not the most elegant solution, but the result it there :beers:

Kind regards,