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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -3 <2（1+2x）/3 ≤6 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        -3 <2 * ( 1 + 2 * x ) / 3         (1)
        2 * ( 1 + 2 * x ) / 3 ≤6         (2)

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    From inequality(1)：
         x ＞ -11/4
    From inequality(2)：
         x ≤ 4

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    From inequalities (1) and (2)
         -11/4 < x ≤ 4     (3)

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    The final solution set is :
         -11/4 < x ≤ 4

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