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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (30x＋20x)－500－900 >(500＋900)×0.25 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 30 * x + 20 * x ) - 500 - 900 > ( 500 + 900 ) × 0.25         (1)

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    From inequality(1)：
         x ＞ 35

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    The final solution set is :
         x ＞ 35

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