Using set of positive integers what is the solution set of the inequality 2x-3<6

Question

Its Hard

 

Answer 1

2x - 3 < 6                  Given

2x < 6 + 3                 Add 3 to each side

2x < 9                       Simplify

x < 9/2                      Divide each side by 2

Since the solution is in the set of positive integers, the answer is {1, 2, 3, 4}, since those are the only positive integers that are less than 9/2 (4.5).