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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 2/X-（0.1x+0.8）/x <5x .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        2 / X - ( 0.1 * X + 0.8 ) / X <5 * X         (1)
        From the definition field of divisor
        x ≠ 0        (2 )
        From the definition field of divisor
        x ≠ 0        (3 )

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    From inequality(1)：
         -1/2 < X < 0 或  X ＞ 12/25
    From inequality(2)：
         X < 0 或  X ＞ 0
    From inequality(3)：
         X < 0 或  X ＞ 0

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    From inequalities (1) and (2)
         -1/2 < X < 0 或  X ＞ 12/25    (4)
    From inequalities (3) and (4)
         -1/2 < X < 0 或  X ＞ 12/25    (5)

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    The final solution set is :
         -1/2 < X < 0 或  X ＞ 12/25

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