(x+2)(x-3)<6
    abs2x-3<3x+1
    (0.5-x)(1.5(1+0.5x%))≥0.75
    (0.5-x)(1.5(1+0.5x%))≥1.5
    (1-x)(1.5(1+0.5x%))≥1.5
    x-50-(100+x)*1% >10
    x-50-(100+x)*1% >10
     x - 50 - ( 100 + x ) * 1 % >10
    x-50-（100+x)*1%>10
    6x-15>4x-2
    x-1<2÷3×x
    4x+3>2x
    (x+1)÷2<3x
    (x+1)÷2<3x
    x+1÷2<3x
    3x-2>X
    9x>43
    8x<43
    2x>1-x
    （2x-3）/（x+1）＜1

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