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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (2900-a)+(3200-a/2)+(3500-a/4)+(3500-a/8) >9000 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 2900 - a ) + ( 3200 - a / 2 ) + ( 3500 - a / 4 ) + ( 3500 - a / 8 ) >9000         (1)

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    From inequality(1)：
         a < 6560/3

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    The final solution set is :
         a < 6560/3

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