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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality x/（27.1+x） <= 0.299 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x / ( 27.1 + x ) <= 0.299         (1)
        From the definition field of divisor
         27.1 + x ≠ 0        (2 )

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    From inequality(1)：
         -27.1 ≤ x ≤ √133611833/1000
    From inequality(2)：
         x < -271/10 或  x ＞ -271/10

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    From inequalities (1) and (2)
         -271/10 < x ≤ √133611833/1000     (3)

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    The final solution set is :
         -271/10 < x ≤ √133611833/1000

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