Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "0.0000007" was replaced by "(0000007/10000000)".

Step  1  :

                7   
 Simplify   ————————
            10000000

Equation at the end of step  1  :

  00007 
  ————————
  10000000

Step  2  :

                           7   
 Divide  15000000  by  ————————
                       10000000

Final result :

  -1732812800/1                        
  ————————————— = 21428571428571.42969 
        7