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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 3 ≤absx-2 <9 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        3 ≤ abs x - 2         (1)
         abs x - 2 <9         (2)

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    From inequality(1)：
         x ≤ -5 或  x ≥ 5
    From inequality(2)：
         -11 < x < 11

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    From inequalities (1) and (2)
         -11 < x ≤ -5 或  5 ≤ x < 11    (3)

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    The final solution set is :
         -11 < x ≤ -5 或  5 ≤ x < 11

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