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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality X/3+4 <= 2/5-x .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         X / 3 + 4 <= 2 / 5 - X         (1)

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    From inequality(1)：
         X ≤ -27/10

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    The final solution set is :
         X ≤ -27/10

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