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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality −33 <= −12−7k <−26 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        -33 <= -12 - 7 * k         (1)
         -12 - 7 * k < -26         (2)

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    From inequality(1)：
         k ≤ 3
    From inequality(2)：
         k ＞ 2

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    From inequalities (1) and (2)
         2 < k ≤ 3     (3)

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    The final solution set is :
         2 < k ≤ 3

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