Hi

let x and y represent the numbers

Question States***

  x + y = 2

  x - y = 17

   2x = 19

    x = 19/2   and y = -15/2  ( y = 4/2-19/2)



CHECKING our Answer***

  1 + y = 2

 19/2 + -15/2 = 4/2 = 2 

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