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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 1.75*(1+(1-0.25)*a/(300+a-(1-0.25)*a))-1     Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        1.75 * ( 1 + ( 1 - 0.25 ) * a / ( 300 + a - ( 1 - 0.25 ) * a ) ) - 1 < a / 300         (1)
        From the definition field of divisor
         300 + x - ( 1 - 0.25 ) * x ≠ 0        (2 )

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    From inequality(1)：
         a < -300
    From inequality(2)：
         a < -1200 或  a ＞ -1200

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    From inequalities (1) and (2)
         a < -1200 或  -1200 < a < -300     (3)

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    The final solution set is :
         a < -1200 或  -1200 < a < -300

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