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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality [(99*x-10)/(20*x)] >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( ( 99 * x - 10 ) / ( 20 * x ) ) >0         (1)
        From the definition field of divisor
         20 * x ≠ 0        (2 )

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    From inequality(1)：
         x < 0 或  x ＞ 10/99
    From inequality(2)：
         x < 0 或  x ＞ 0

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    From inequalities (1) and (2)
         x < 0 或  x ＞ 10/99    (3)

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    The final solution set is :
         x < 0 或  x ＞ 10/99

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