Overview: 2 questions will be solved this time.Among them
           ☆2 inequalities

[ 1/2Inequality]
    Assignment:Find the solution set of inequality -3x-1 >= 0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -3 * x - 1 >= 0         (1)

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    From inequality(1)：
         x ≤ -1/3

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    The final solution set is :
         x ≤ -1/3
[ 2/2Inequality]
    Assignment:Find the solution set of inequality 2(4-x) <1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        2 * ( 4 - x ) <1         (1)

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    From inequality(1)：
         x ＞ 7/2

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    The final solution set is :
         x ＞ 7/2

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