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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality （1.075+X）/(21.51+X) ≤0.07 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 1.075 + X ) / ( 21.51 + X ) ≤0.07         (1)
        From the definition field of divisor
         21.51 + x ≠ 0        (2 )

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    From inequality(1)：
         -21.51 ≤ X ≤ 0.463118
    From inequality(2)：
         X < -2151/100 或  X ＞ -2151/100

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    From inequalities (1) and (2)
         -2151/100 < X ≤ 0.463118     (3)

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    The final solution set is :
         -2151/100 < X ≤ 0.463118

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