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

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

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    From inequality(1)：
         x < 2

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    The final solution set is :
         x < 2
[ 2/2Inequality]
    Assignment:Find the solution set of inequality 2（x+3）-4 ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        2 * ( x + 3 ) - 4 ≥0         (1)

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    From inequality(1)：
         x ≥ -1

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    The final solution set is :
         x ≥ -1

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