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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -1 <4-7x/5 ≤3 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        -1 <4 - 7 * x / 5         (1)
        4 - 7 * x / 5 ≤3         (2)

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    From inequality(1)：
         x < 25/7
    From inequality(2)：
         x ≥ 5/7

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    From inequalities (1) and (2)
         5/7 ≤ x < 25/7    (3)

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    The final solution set is :
         5/7 ≤ x < 25/7

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