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17 July, 14:09

Find two numbers, if ... d Their sum is - 1 3 and their difference is 18

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  1. 17 July, 14:20
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    The numbers are - 15.5 and 2.5.

    Step-by-step explanation:

    Let the numbers be a and b.

    a + b = - 13

    a - b = 18

    Add the two equations.

    2a = 5

    a = 2.5

    a - b = 18

    2.5 - b = 18

    -b = 15.5

    b = - 15.5

    The numbers are - 15.5 and 2.5.
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