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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 30×3x+（24-x）×5×16大于等于2100 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        30 × 3 * x + ( 24 - x ) × 5 × 16 ≥2100         (1)

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    From inequality(1)：
         x ≥ 18

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    The final solution set is :
         x ≥ 18

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