can variable be defined twice in Mathcad ?

I am working on two set of calculations in Mathcad in same file. E.g..high speed and low speed. For this I need to use same input variable say X with different values  for both high and low speeds. So I get the green line underneath the variable even in printouts and PDFs since its defined twice. Is there any solutions for this than making some small change in variable like Xh and XL.