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13 September, 17:37

Find 2 numbers a and b whose sum is 4 and whose difference is - 2

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  1. 13 September, 18:32
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    a = 1, b = 3.

    Step-by-step explanation:

    a + b = 4

    a - b = - 2 Adding to eliminate b:

    2a = 2

    a = 1

    So 1 + b = 4

    giving b = 3.
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