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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 2x(1.15+x)/(1+0.7x)/(2.15x+1.15) >1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        2 * x * ( 1.15 + x ) / ( 1 + 0.7 * x ) / ( 2.15 * x + 1.15 ) >1         (1)
        From the definition field of divisor
         1 + 0.7 * x ≠ 0        (2 )
        From the definition field of divisor
         2.15 * x + 1.15 ≠ 0        (3 )

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    From inequality(1)：
         x < -1.428571 或  -1 < x < -0.534884 或  x ＞ 230/99
    From inequality(2)：
         x < -10/7 或  x ＞ -10/7
    From inequality(3)：
         x < -0.534884 或  x ＞ -0.534884

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    From inequalities (1) and (2)
         x < -1.428571 或  -1 < x < -0.534884 或  x ＞ 230/99    (4)
    From inequalities (3) and (4)
         x < -1.428571 或  -1 < x < -0.534884 或  x ＞ 230/99    (5)

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    The final solution set is :
         x < -1.428571 或  -1 < x < -0.534884 或  x ＞ 230/99

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