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10 May, 17:44

2x - 7y = 13

3x + y = 8

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  1. 10 May, 17:58
    0
    A) 2x - 7y = 13

    B) 3x + y = 8

    Multiplying equation B by 7

    B) 21x + 7y = 56 then adding it to A

    A) 2x - 7y = 13

    23x = 69

    x = 3

    y = - 1
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