x-10<20-2x
    2x-8
    2x+6<3
    3x+3<5
    x+1>-1
    3x+1>0
    2x-4>-5
    2-3x+4>0
    9-4x<1
    -3<9-4x
    1.2x>2+2x
    (-2x+27)/5>=(1/4)x+(3/2)
    10-2(x-1)≥3(x-1)-5
    3(1-x)<2(x+9)
    x<=(x+2)/3+2
    -x+7>=2(x-1)
    -2x<0
    10-4(x-3)≥2(x-1)
    2(x+1)<=24-3x
    (1/3)x-4>=(4/3)x+2

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