Simple Moving Text in TextField

Now this may sound so obvious to you, but I truly cannot find any help about this one, on the web, whatsoever.

**What I want, is to move a text from right to left (like stock market prices) in a Dynamic Text Field of fixed width. **That’s all!

It appears really easy, but I’ve googled the web for hours and found only highly comlex solutions with masks and things I don’t understand (i am still a beginner with AS3) or solutions based upon EnterFrame action and I need my text to be indepedent upon EnterFrame action as it concernes many nested movie clips and animations.
I need as simple solution as possible. I would be very gratefull for any help!

Thanks and greetings to all Kirupa from Gordon!