Overview: 3 questions will be solved this time.Among them
           ☆3 inequalities

[ 1/3Inequality]
    Assignment:Find the solution set of inequality 100-x <200-3x .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        100 - x <200 - 3 * x         (1)

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    From inequality(1)：
         x < 50

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    The final solution set is :
         x < 50
[ 2/3Inequality]
    Assignment:Find the solution set of inequality 100-x <160-2x .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        100 - x <160 - 2 * x         (1)

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    From inequality(1)：
         x < 60

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    The final solution set is :
         x < 60
[ 3/3Inequality]
    Assignment:Find the solution set of inequality 160-2x <200-3x .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        160 - 2 * x <200 - 3 * x         (1)

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    From inequality(1)：
         x < 40

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    The final solution set is :
         x < 40

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