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    (4x-2)(5x+7)=0
    <=> x=0.5 or x=7/5
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    (3x)(1+5+8)
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    hgfhfd
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    2y+7x=25

    11y+3x=89
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    (3x)(1+5+8) = 42x
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    (Original post by mr T 999)
    2y+7x=25

    11y+3x=89
    Can't quite do those in my head yet
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    Y=In x - In y
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    2 In (x/7 ( -5))=-7
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    gfds
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    (x-3)(x-12)+9=7x-2
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    (Original post by mr T 999)
    Y=In x - In y
    well this is actually just a function, there is a curve which is a solution to this, i.e x=1/y *e^y, so I can't solve it

    (Original post by mr T 999)
    (x-3)(x-12)+9=7x-2

    x=11+/- 0.5*root(446) ?

    possibly mistakes in there
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    3 fat ladies stood under a umbrella, but none of them got wet. Why didn't non of them get wet?
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