Solution - Simplification or other simple results

Step  1  :

            2
 Simplify   —
            1

Equation at the end of step  1  :

  (10 +  2) +  12

Step  2  :

Pulling out like terms :

 2.1      Pull out     12 

After pulling out, we are left with :
      12 • ( 1 - (-1) ))

Final result :

  24