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The sum of two whole numbers is 9,and their positive difference is 5.what is the product of the numbers?

  • Math -

    let the smaller be x
    and the larger be 9-x
    then
    9-x - x = 5
    -2x = -4
    x = 2

    smaller is 2, larger is 7

    or

    let one be x, the other be y
    x+y=9
    x-y=5
    add them --->2x = 14
    x = 7
    then in x+y=9
    7=Y=9
    y = 2

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