11 thoughts on “Algebra – 14

  1. in the second question if (0,40) is considered, then number of solution is 14. can anybody explain how it is 13 in the solution. because even if question said positive integers, 0 is considered in the solution above

    • 0 is not considered in the final answer. But it is taken initially as it is an obvious integer solution, an easy starting point from which to generate further solutions. You need somewhere to start! Otherwise, you would need to do some trial and error to find the first acceptable solution.

      regards
      J

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