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5 August, 00:22

Find two numbers, if

Their sum is 3/5 and their difference is 7 1/5

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Answers (1)
  1. 5 August, 00:54
    0
    Let the numbers be represented by x and y.

    ... x + y = 0.6

    ... x - y = 7.2

    Add these equations to get

    ... 2x = 7.8

    ... x = 3.9

    Then you can find y from

    ... y = 0.6 - 3.9 = - 3.3

    The two numbers are - 3.3 and 3.9.
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