Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "*-4" was replaced by "*(-4)".

Step  1  :

            3
 Simplify   —
            4

Equation at the end of step  1  :

        3
  0 -  (— • -4)
        4

Step  2  :

Final result :

  3