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

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

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    From inequality(1)：
         m ＞ -4
    From inequality(2)：
         m < -1
    From inequality(3)：
         m ＞ -2

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    From inequalities (1) and (2)
         -4 < m < -1     (4)
    From inequalities (3) and (4)
         -2 < m < -1     (5)

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    The final solution set is :
         -2 < m < -1

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