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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 16 <= 2-3a <17 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        16 <= 2 - 3 * a         (1)
         2 - 3 * a <17         (2)

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    From inequality(1)：
         a ≤ -14/3
    From inequality(2)：
         a ＞ -5

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    From inequalities (1) and (2)
         -5 < a ≤ -14/3     (3)

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    The final solution set is :
         -5 < a ≤ -14/3

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