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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -21.5+X-X×0.025-30×0.025 ≥50 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -21.5 + X - X × 0.025 - 30 × 0.025 ≥50         (1)

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    From inequality(1)：
         X ≥ 74.102564

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    The final solution set is :
         X ≥ 74.102564

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