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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 1－2X ≥2/X+7 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        1 - 2 * X ≥2 / X + 7         (1)
        From the definition field of divisor
        x ≠ 0        (2 )

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    From inequality(1)：
         X ≤ -2.618034 或  -0.381966 ≤ X ≤ 0
    From inequality(2)：
         X < 0 或  X ＞ 0

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    From inequalities (1) and (2)
         X ≤ -2.618034 或  -0.381966 ≤ X < 0    (3)

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    The final solution set is :
         X ≤ -2.618034 或  -0.381966 ≤ X < 0

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