Adding 2 measures and not showing duplicate results

Hi,

Is there a way to add 2 (or more) measures together and subtract the duplicate results? for instance:

[measures].[issue comment created]+
[measures].[issue comment resolved]

this will show duplicate results, is there a way to show the “or” total instead of “and” so the same issues that fall in “created” and “resolved” in a given time period don’t show up twice in the report?

R/S
Vanessa