5x-3>2(3-2x)
    7x-8<9x
    5^7
    4x+8＜18-6x
    3x＋3≧2x＋7
    9a＾2+12a-64>0
    (1-1/4^x)[2x(x+1)(2x+1)-3x]/18>2sqrt(3)
    (1-1/4^x)[2x(x+1)(2x+1)-3x]/18<2sqrt(3)
    [（3x-5）/4]-[(2x+3)/7]≤2
    −50+x+(−1−0.01x)≥10
    (3x-5/4)-2x+3/7≤2
    -50-(100+x)*0.01+x ≥ 10
    250(140-m)+450m≧42200
    250(140-m)+150m≧42200
    (0.2+2t+0.8*8.6)*(7.9t+89.16)/(10.7+t)/86>=1.6
    -50-(100+x)×0.1+x >= 10
    -50-(100+x)×1%+x>=10
    55x+150(30-x)＜2600
    55x+150(30-x)＜
    3x^2-10x-1>0

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