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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 10-x <15-2x <25-3x .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        10 - x <15 - 2 * x         (1)
        15 - 2 * x <25 - 3 * x         (2)

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    From inequality(1)：
         x < 5
    From inequality(2)：
         x < 10

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    From inequalities (1) and (2)
         x < 5    (3)

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    The final solution set is :
         x < 5

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