Mathematics
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    (x-30)(150-3x)=
    (x-30)(150-3x)
    -3x^2+240x-4500=480
    x^2-80x+1660=0
    x^2-80x+1600=0
    5x+x/5=52
    5x+x/2=52
    5x-x/2=52
    5x-x/2
    2x-x/2
    18-x=2
    (x - 38.4)/1920*100=15
    x∧2=100-10x
    (x - 38.4) / 1920 * 100 = 15
    X/6+x/8+1=1
    ((x - 38.4) / 1920 * 100) = 15
    ((x - 38.4) / 1920 * 100)
    2612476000=13.8*1580x*(1367-x/2)
    tanx=x
    24-x=9

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