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

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

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

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

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    The final solution set is :
         -1 ≤ x ≤ 2

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