Overview: 3 questions will be solved this time.Among them
           ☆3 inequalities

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

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    From inequality(1)：
         x ≥ -1

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

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    From inequality(1)：
         x < 5

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    The final solution set is :
         x < 5
[ 3/3Inequality]
    Assignment:Find the solution set of inequality 4 ≤3x-2 ≤2x+3 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        4 ≤3 * x - 2         (1)
        3 * x - 2 ≤2 * x + 3         (2)

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    From inequality(1)：
         x ≥ 2
    From inequality(2)：
         x ≤ 5

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    From inequalities (1) and (2)
         2 ≤ x ≤ 5    (3)

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    The final solution set is :
         2 ≤ x ≤ 5

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