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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 2.5x ≤4x-3 <2.5x-3+1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        2.5 * x ≤4 * x - 3         (1)
        4 * x - 3 <2.5 * x - 3 + 1         (2)

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    From inequality(1)：
         x ≥ 2
    From inequality(2)：
         x < 2/3

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    From inequalities (1) and (2)
        x ∈ Φ (Φ is empty)that is, the inequality will never be estatlished within the real number range!    (3)

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    The final solution set is :
        x ∈ Φ (Φ is empty)that is, the inequality will never be estatlished within the real number range!

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