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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 1.3x/(x+700) <0.53 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        1.3 * x / ( x + 700 ) <0.53         (1)
        From the definition field of divisor
         x + 700 ≠ 0        (2 )

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    From inequality(1)：
         x < 5300/11
    From inequality(2)：
         x < -700 或  x ＞ -700

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    From inequalities (1) and (2)
         x < -700 或  -700 < x < 5300/11     (3)

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    The final solution set is :
         x < -700 或  -700 < x < 5300/11

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