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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0.6（y＋21）大于等于13.31 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        0.6 * ( y + 21 ) ≥13.31         (1)

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    From inequality(1)：
         y ≥ 71/60

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    The final solution set is :
         y ≥ 71/60

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