Overview: 4 questions will be solved this time.Among them
           ☆4 inequalities

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

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    From inequality(1)：
         x ≥ -1/3

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    The final solution set is :
         x ≥ -1/3
[ 2/4Inequality]
    Assignment:Find the solution set of inequality (2x-1)/2-(2x+5)/3 >= (6x-7)/4-1 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 2 * x - 1 ) / 2 - ( 2 * x + 5 ) / 3 >= ( 6 * x - 7 ) / 4 - 1         (1)

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    From inequality(1)：
         x ≤ 1/2

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    The final solution set is :
         x ≤ 1/2
[ 3/4Inequality]
    Assignment:Find the solution set of inequality 12-4(3x-1) >= 2(2x-16) .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        12 - 4 * ( 3 * x - 1 ) >= 2 * ( 2 * x - 16 )         (1)

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    From inequality(1)：
         x ≤ 3

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    The final solution set is :
         x ≤ 3
[ 4/4Inequality]
    Assignment:Find the solution set of inequality x-(3x-8)/2+1 >= 2(10-x)/7 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x - ( 3 * x - 8 ) / 2 + 1 >= 2 * ( 10 - x ) / 7         (1)

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    From inequality(1)：
         x ≤ 10

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    The final solution set is :
         x ≤ 10

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