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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 5% <（200+7%+x*4%/200+x）*100% <6% .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        5 % < ( 200 + 7 % + x * 4 % / 200 + x ) * 100 %         (1)
         ( 200 + 7 % + x * 4 % / 200 + x ) * 100 % <6 %         (2)

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    From inequality(1)：
         x ＞ -199.980004
    From inequality(2)：
         x < -199.970006

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    From inequalities (1) and (2)
         -199.980004 < x < -199.970006     (3)

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    The final solution set is :
         -199.980004 < x < -199.970006

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