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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 90z-10(16-5z) <= 1100 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        90 * z - 10 * ( 16 - 5 * z ) <= 1100         (1)

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    From inequality(1)：
         z ≤ 9

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    The final solution set is :
         z ≤ 9

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