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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 8     Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        8 < a / 2         (1)
         a / 2 <9         (2)

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    From inequality(1)：
         a ＞ 16
    From inequality(2)：
         a < 18

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    From inequalities (1) and (2)
         16 < a < 18     (3)

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    The final solution set is :
         16 < a < 18

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