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15 March, 07:42

The sum of two numbers is 13, the difference is 4. What are the numbers?.

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  1. 15 March, 08:16
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    a = 8.5

    b = 4.5

    Step-by-step explanation:

    let 2 number be a, b

    a + b = 13 (1)

    a - b = 4 (2)

    (1) + (2) = 2a = 13+4 = 17 - > a = 8.5

    -> b = 8.5 - 4 = 4.5
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