Step 1: Calculate the (any variable)p value

           [NOTE:The definition of an arithmetic series is that the difference of two

           consecutive terms is always constant, (Consecutive terms common difference = another consecutive terms common difference)]

           EXAMPLE: p, 5p - 8, 3p+8

           (5p - 8) - (p) = (3p + 8) - (5p - 8)

Skill 2: Simplify further.(apply the BODMAS rules)].

           [NOTE: Substitute the (any variable) p value in the

           given terms and simplify, to get the proper arithmetic series.]