Overview: 2 questions will be solved this time.Among them
           ☆2 inequalities

[ 1/2Inequality]
    Assignment:Find the solution set of inequality X+2 ≥-2X-1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         X + 2 ≥ -2 * X - 1         (1)

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    From inequality(1)：
         X ≥ -1

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    The final solution set is :
         X ≥ -1
[ 2/2Inequality]
    Assignment:Find the solution set of inequality 3X ≤2（x+1） .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        3 * X ≤2 * ( X + 1 )         (1)

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    From inequality(1)：
         X ≤ 2

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    The final solution set is :
         X ≤ 2

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