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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 85 <170/3+(1/3)x <= 90 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        85 <170 / 3 + ( 1 / 3 ) * x         (1)
        170 / 3 + ( 1 / 3 ) * x <= 90         (2)

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    From inequality(1)：
         x ＞ 85
    From inequality(2)：
         x ≤ 100

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    From inequalities (1) and (2)
         85 < x ≤ 100     (3)

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    The final solution set is :
         85 < x ≤ 100

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