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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 3 <11.7×（8-x)÷（26.6x÷3.5） <6 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        3 <11.7 × ( 8 - x ) ÷ ( 26.6 * x ÷ 3.5 )         (1)
        11.7 × ( 8 - x ) ÷ ( 26.6 * x ÷ 3.5 ) <6         (2)

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    From inequality(1)：
         0 < x < 2.713043
    From inequality(2)：
         x < 0 或  x ＞ 1.633508

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    From inequalities (1) and (2)
         1.633508 < x < 2.713043     (3)

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    The final solution set is :
         1.633508 < x < 2.713043

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