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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 20a+10×（4600-60a÷40） ≥3000 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        20 * a + 10 × ( 4600 - 60 * a ÷ 40 ) ≥3000         (1)

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    From inequality(1)：
         a ≥ -8600

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    The final solution set is :
         a ≥ -8600

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