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    Cesc27's Avatar
    Cesc27 Posts: 2, Reputation: 1
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    #1

    Oct 7, 2011, 05:32 AM
    Hey .searching for a math genuis
    3. Make x the subject of the following formulae

    y = (7 x)/14 b. y = (5x 1)/(x - 1)
    vickia's Avatar
    vickia Posts: 7, Reputation: 1
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    #2

    Oct 11, 2011, 10:59 AM
    a)y=7x/14

    . 14y=7x (first multiply both sides by 14)
    . 14y/7=x (then divide both sides by 7)

    b) y=(5x+1)/(x-1)

    . y(x-1)=(5x+1)
    . Yx-y=5x+1
    . Yx-5x=y+1
    . x(y-5)=y+1
    . x=(y+1)/(y-5)
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