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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 651.84*（1.67+n）+57.61*(15.5+n)+411.08*(11.5+n)-1.2*3.38*(15.73+n)-1.2*103.25*(12.51+n)-1.2*347.65*(8.19+n)-1.2*613*(2.74+n) ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        651.84 * ( 1.67 + n ) + 57.61 * ( 15.5 + n ) + 411.08 * ( 11.5 + n ) - 1.2 * 3.38 * ( 15.73 + n ) - 1.2 * 103.25 * ( 12.51 + n ) - 1.2 * 347.65 * ( 8.19 + n ) - 1.2 * 613 * ( 2.74 + n ) ≥0         (1)

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    From inequality(1)：
         n ≤ -2.104105

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    The final solution set is :
         n ≤ -2.104105

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