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

[ 1/2Inequality]
    Assignment:Find the solution set of inequality abs(0.15*x) <0.25 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         abs ( 0.15 * x ) <0.25         (1)

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    From inequality(1)：
         -5/3 < x < 5/3

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    The final solution set is :
         -5/3 < x < 5/3
[ 2/2Inequality]
    Assignment:Find the solution set of inequality abs(0.25-1.5*x) <0.25 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         abs ( 0.25 - 1.5 * x ) <0.25         (1)

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    From inequality(1)：
         0 < x < 1/3

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    The final solution set is :
         0 < x < 1/3

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