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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality （2*x+0.8*9)*(63.6+7.8*x)/(10+x)/90 >1.5 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 2 * x + 0.8 * 9 ) * ( 63.6 + 7.8 * x ) / ( 10 + x ) / 90 >1.5         (1)
        From the definition field of divisor
         10 + x ≠ 0        (2 )

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    From inequality(1)：
         -10 < x < -9.269269 或  x ＞ 6.169269
    From inequality(2)：
         x < -10 或  x ＞ -10

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    From inequalities (1) and (2)
         -10 < x < -9.269269 或  x ＞ 6.169269    (3)

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    The final solution set is :
         -10 < x < -9.269269 或  x ＞ 6.169269

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