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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (3-x)/(2x+1) ≥1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 3 - x ) / ( 2 * x + 1 ) ≥1         (1)
        From the definition field of divisor
         2 * x + 1 ≠ 0        (2 )

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    From inequality(1)：
         -0.5 ≤ x ≤ 2/3
    From inequality(2)：
         x < -1/2 或  x ＞ -1/2

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

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    The final solution set is :
         -1/2 < x ≤ 2/3

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