Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

           3          
  (10 +  (—— • 4)) -  1
          22          

Step  2  :

             3
 Simplify   ——
            22

Equation at the end of step  2  :

          3          
  (10 +  (— • 4)) -  1
          4          

Step  3  :

Final result :

  12