Overview: 1 questions will be solved this time.Among them
           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 2000*75%x >80%(x-1) .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        2000 * 75 % * x >80 % * ( x - 1 )         (1)

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    From inequality(1)：
         x ＞ -0.000534

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    The final solution set is :
         x ＞ -0.000534

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