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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (80*51.3%+x)÷(80+x) ≥55% .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 80 * 51.3 % + x ) ÷ ( 80 + x ) ≥55 %         (1)

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    From inequality(1)：
         x ≤ -80 或  x ≥ 296/45

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    The final solution set is :
         x ≤ -80 或  x ≥ 296/45

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