Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

         28     
  (17 -  ——) +  52
         4      

Step  2  :

            7
 Simplify   —
            1

Equation at the end of step  2  :

  (17 -  7) +  52

Step  3  :

Final result :

  35