x-1>2 (x-1)/2
    -x＾4-2x＾3+2x＾2-1＞0
    ((2x-1)/3)-((5x+1)/2)<1 5x-1<3(x+1)
    3(x+1)<5x ((1/3)x)-1<7-(5/3)x
    2x-3<5 1+((1-x)/2)
    (x-1)/2<1 x-2<4(x+1)
    2x>0 (x+1)/2>(2x-1)/3
    x-6>(x-10)/2 3x+1>4x-3
    2x<5-x/2 x-3(x-2)<8
    5x-1<3(x+1) ((2x-1)/3)-1<(5x+1)/2
    5x-2>3(x+1) 0.5x-1<7-1.5x
    2x+40/x<20
    x-3(x-2)<4 (x-1)/2<(x+1)/3
    3x+6>5(x-2) ((x-5)/2)-(4x-3)/3<1
    3x+6>5(x-2)
    x-1>2x (X/2)+3<-2
    5x-5<10-(4x-2)
    (x-1)/2<1-((2x-1)/5)
    5x+4>3(x+1) (x-1)/2<1-(2x-1)/5
    1-2x>10-5(4x-3)

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