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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -40+x-20*12%/4-x*12%/4 ≥30 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -40 + x - 20 * 12 % / 4 - x * 12 % / 4 ≥30         (1)

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    From inequality(1)：
         x ≥ 72.783505

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    The final solution set is :
         x ≥ 72.783505

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