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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (50+0.4y)/(0.85-0.00026y) >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 50 + 0.4 * y ) / ( 0.85 - 0.00026 * y ) >0         (1)
        From the definition field of divisor
         0.85 - 0.00026 * x ≠ 0        (2 )

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    From inequality(1)：
         y ＞ -125
    From inequality(2)：
         y < 3269.230769 或  y ＞ 3269.230769

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    From inequalities (1) and (2)
         -125 < y < 3269.230769 或  y ＞ 3269.230769    (3)

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    The final solution set is :
         -125 < y < 3269.230769 或  y ＞ 3269.230769

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