Question 448553
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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