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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0.7×40x <0.8×40（x－6） .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        0.7 × 40 * x <0.8 × 40 * ( x - 6 )         (1)

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    From inequality(1)：
         x ＞ 48

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    The final solution set is :
         x ＞ 48

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