Mathematics
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    x/6+1>(x+2)/3
    x+(3x-1)<=2x-7
    xx-6x+8<0
    xx+6x-8>0
    (x-1)(5x-1)>0
    abs(x^2+2x-3)>1
    -x^2-2absx+3<0
    (3x^2-3x+6-x^3+x^2-2x)÷(-x^2+10x-21)≥0
    (3x^2-3x+6-x^3+x^2-2x)÷(-x^2+10x-21)≥0
    (3x^2-3x+6-x^3+x^2-2)÷(-x^2+10x-21)≥0
    (4x^2+x^3+5x-6)÷(x^2-10x+21)≥0
    (4x^2+x^3+5x-6)÷(x^2-10x+21)≥0
    (4x^2+x^3+5x-6)÷x^2-10x+21≥0
    x(x+1)≥3(x+1)^2
    2x^2+6√2+9<0
    -x^2+7x-6>0
    (2x+1)(x-3)>3(x^2+2)
    x^2-4x+4≤0
    -x^2+2x>0
    (x-2)(1-3x)>2

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