Overview: 2 questions will be solved this time.Among them
           ☆2 inequalities

[ 1/2Inequality]
    Assignment:Find the solution set of inequality 35x+25(50-x) >= 1530 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        35 * x + 25 * ( 50 - x ) >= 1530         (1)

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    From inequality(1)：
         x ≥ 28

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    The final solution set is :
         x ≥ 28
[ 2/2Inequality]
    Assignment:Find the solution set of inequality 15x+35(50-x) >= 1150 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        15 * x + 35 * ( 50 - x ) >= 1150         (1)

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    From inequality(1)：
         x ≤ 30

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    The final solution set is :
         x ≤ 30

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