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

[ 1/2Inequality]
    Assignment:Find the solution set of inequality 3（x--1） ≤-5（x+1） .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        3 * ( x - -1 ) ≤ -5 * ( x + 1 )         (1)

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    From inequality(1)：
         x ≤ -1

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    The final solution set is :
         x ≤ -1
[ 2/2Inequality]
    Assignment:Find the solution set of inequality 13-x/3 <4x .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        13 - x / 3 <4 * x         (1)

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    From inequality(1)：
         x ＞ 3

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    The final solution set is :
         x ＞ 3

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