Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "0.0004" was replaced by "(0004/10000)".

Step  1  :

              1 
 Simplify   ————
            2500

Equation at the end of step  1  :

         1 
  0 -  ————
       2500

Step  2  :

Final result :

   -1             
  ———— = -0.00040 
  2500