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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -1 <（9a+13）/5 ≤8 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        -1 < ( 9 * a + 13 ) / 5         (1)
         ( 9 * a + 13 ) / 5 ≤8         (2)

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    From inequality(1)：
         a ＞ -2
    From inequality(2)：
         a ≤ 3

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    From inequalities (1) and (2)
         -2 < a ≤ 3     (3)

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    The final solution set is :
         -2 < a ≤ 3

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