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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality abs(x+75/4/x-x/300-0.466*300.4) ≤0.6 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         abs ( x + 75 / 4 / x - x / 300 - 0.466 * 300.4 ) ≤0.6         (1)
        From the definition field of divisor
        x ≠ 0        (2 )

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    From inequality(1)：
         139.717927 ≤ x ≤ 140.923092
    From inequality(2)：
         x < 0 或  x ＞ 0

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    From inequalities (1) and (2)
         139.717927 ≤ x ≤ 140.923092    (3)

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    The final solution set is :
         139.717927 ≤ x ≤ 140.923092

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