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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 3 <-5/3*n+39/50 <5 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        3 < -5 / 3 * n + 39 / 50         (1)
         -5 / 3 * n + 39 / 50 <5         (2)

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    From inequality(1)：
         n < -333/250
    From inequality(2)：
         n ＞ -633/250

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    From inequalities (1) and (2)
         -633/250 < n < -333/250     (3)

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    The final solution set is :
         -633/250 < n < -333/250

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