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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality x+13 <7x-5 <2x+19 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
         x + 13 <7 * x - 5         (1)
        7 * x - 5 <2 * x + 19         (2)

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    From inequality(1)：
         x ＞ 3
    From inequality(2)：
         x < 24/5

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    From inequalities (1) and (2)
         3 < x < 24/5     (3)

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    The final solution set is :
         3 < x < 24/5

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