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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0.3 <4.5/(6+x) .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        0.3 <4.5 / ( 6 + x )         (1)
        From the definition field of divisor
         6 + x ≠ 0        (2 )

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    From inequality(1)：
         -6 < x < 9
    From inequality(2)：
         x < -6 或  x ＞ -6

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    From inequalities (1) and (2)
         -6 < x < 9     (3)

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    The final solution set is :
         -6 < x < 9

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