Is it worth paying an old debt or not?

I have a debt of $2500 or so on my credit. It's been on my credit report for about a yr now. Every time I call to try to settle for less they keep saying no! But my question is will a lender give me a mortgage loan with this on my credit report?

I know either way it's still going to always be a negative on m report from it even if I pay it. My credit want go up? So is it worth paying or just wait 6yrs until its remove.

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