Solution - Simplification or other simple results

Step  1  :

            5
 Simplify   —
            2

Equation at the end of step  1  :

   3         5
  (— • (0 -  —)) • -2
   2         2

Step  2  :

            3
 Simplify   —
            2

Equation at the end of step  2  :

   3   -5
  (— • ——) • -2
   2   2 

Step  3  :

Final result :

  15           
  —— = 7.50000 
  2