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14 February, 22:49

6y-5x=5 and x=2y+7 using substition in linear functions

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  1. 14 February, 22:57
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    6y-5x=5 x=2y+7

    x=2y+7 x=2 (-10) + 7

    6y-5 (2y+7) = 5 x = - 20+7

    6y-10y-35=5 x = - 13

    6y-10y=5+35

    -4y=40

    y = - 40/4

    y=-10
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