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19 October, 22:18

Y = x + 3

8x - 7y = 12

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  1. 19 October, 22:21
    0
    8x-7 (x+3) = 12

    8x-7x+21=12

    -21 + 21

    15x=33

    - -

    15 15

    X=2.2

    Y=5.2
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