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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 7991+（X-15999）*46%/X ≤50% .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        7991 + ( X - 15999 ) * 46 % / X ≤50 %         (1)
        From the definition field of divisor
        x ≠ 0        (2 )

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    From inequality(1)：
         0 ≤ X ≤ 0.920983
    From inequality(2)：
         X < 0 或  X ＞ 0

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    From inequalities (1) and (2)
         0 < X ≤ 0.920983     (3)

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    The final solution set is :
         0 < X ≤ 0.920983

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