Verified Answer :

  1. 2 consecutive integers....x = smaller one, x + 1 = larger one
          2(x + 1) = 3x - 15
          2x + 2 = 3x - 15
          2 + 15 = 3x - 2x
          17 = x

    x + 1 = 17 + 1 = 18
    so ur 2 numbers are : 17 and 18
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    11. 2 consecutive odd integers....x = smaller one and x + 2 = larger one
          5(x + 2) = 8x + 1
          5x + 10 = 8x + 1
          10 - 1 = 8x - 5x
           9 = 3x
           9/3 = x
           3 = x

    x + 2 = 3 + 2= 5
    so ur 2 numbers are : 3 and 5
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    12. 2 consecutive even integers....x = smaller one.....x + 2 = larger one
          1/2x = x + 2 + 2
          1/2x = x + 4
          1/2x - x = 4
          1/2x - 2/2x = 4
          -1/2x = 4
            x = 4 * -2
            x = -8

    x + 2 = -8 + 2 = -6
    so ur 2 numbers are : -6 and -8