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

[ 1/2Inequality]
    Assignment:Find the solution set of inequality 40x+30(8-x) >= 290 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        40 * x + 30 * ( 8 - x ) >= 290         (1)

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    From inequality(1)：
         x ≥ 5

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    The final solution set is :
         x ≥ 5
[ 2/2Inequality]
    Assignment:Find the solution set of inequality 10x+20(8-x) >= 100 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        10 * x + 20 * ( 8 - x ) >= 100         (1)

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    From inequality(1)：
         x ≤ 6

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    The final solution set is :
         x ≤ 6

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