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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 2000x+2400x+1600(15-2x) ≤32400 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        2000 * x + 2400 * x + 1600 * ( 15 - 2 * x ) ≤32400         (1)

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    From inequality(1)：
         x ≤ 7

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    The final solution set is :
         x ≤ 7

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