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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 5+x ≤4+10x ≤10+2x .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        5 + x ≤4 + 10 * x         (1)
        4 + 10 * x ≤10 + 2 * x         (2)

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    From inequality(1)：
         x ≥ 1/9
    From inequality(2)：
         x ≤ 3/4

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    From inequalities (1) and (2)
         1/9 ≤ x ≤ 3/4    (3)

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    The final solution set is :
         1/9 ≤ x ≤ 3/4

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