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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 21700 <= 60x-16000 <= 22300 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        21700 <= 60 * x - 16000         (1)
         60 * x - 16000 <= 22300         (2)

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    From inequality(1)：
         x ≥ 1885/3
    From inequality(2)：
         x ≤ 1915/3

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    From inequalities (1) and (2)
         1885/3 ≤ x ≤ 1915/3    (3)

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    The final solution set is :
         1885/3 ≤ x ≤ 1915/3

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