Overview: 2 questions will be solved this time.Among them
           ☆1 inequalities

【1/2】12 * 9 = 36 * 3 ;
    Input error！
[ 2/2Inequality]
    Assignment:Find the solution set of inequality 67 <58 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        67 <58         (1)

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    From inequality(1)：
        The solution set is empty, that is, within the range of real numbers, the inequality will never be established!

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    The final solution set is :
        The solution set is empty,that is, the inequality will never be estatlished within the real number range.

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