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27 September, 03:37

Sole the system by elimination - 4x+9y=9 x-3y=-6

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  1. 27 September, 06:08
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    A) - 4x + 9y = 9

    B) x - 3y = - 6

    We multiply B) by 3

    B) 3x - 9y = - 18 Then add it to A)

    A) - 4x + 9y = 9

    -x = - 9

    x = 9

    9 - 3y = - 6

    3y = 15

    y = 5
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