(x+1)/4>(x-1)/2
    2x+1>4(x-1) ((x+1)/4)-((x-1)/3)<1
    5x+4<2x-2 2(x-1)>3(x+1)
    x-((x+1)/2)>1/2 x+8<4x-1
    2(x-1)<4x+2 (x+1)/4>(x-1)/2
    3x-1>x+4 x+1>(4x-1)/3
    3(x-1)+9>5x (3x-1)/2>-2
    2x-7<3(x-1) ((4/3)x)+3<1-(2/3)x
    2x>(x+7)/2
    5x-2<3x+4 2x>(x+7)/2
    3x-2<4 2(x-1)<3x+1
    ((2x-1)/3)-(5x+1)/2<1 5x-1<3(x+1)
    x-1>2x (x-1)/2
    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

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