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27 October, 01:45

Write pair of integers whose:

Sum is 15 and the difference is (-9).

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Answers (1)
  1. 27 October, 02:23
    0
    (3, 12)

    Step-by-step explanation:

    x + y = 15

    x - y = - 9

    add them together

    2x + 0y = 6

    2x = 6

    x = 6/2

    x = 3

    substitute 3 into any equation, i chose x + y = 15

    3 + y = 15

    y = 12

    check for 2nd equation:

    3 - 12 = - 9

    -9 = - 9
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