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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality （100x-10）/（-100x-10） ≤0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 100 * x - 10 ) / ( -100 * x - 10 ) ≤0         (1)
        From the definition field of divisor
         -100 * x - 10 ≠ 0        (2 )

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    From inequality(1)：
         x ≤ -0.1 或  x ≥ 1/10
    From inequality(2)：
         x < -1/10 或  x ＞ -1/10

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    From inequalities (1) and (2)
         x < -1/10 或  x ≥ 1/10    (3)

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    The final solution set is :
         x < -1/10 或  x ≥ 1/10

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