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解二元一次方程组时,有些同学由于基础知识掌握不牢固,解题思路不清楚,常出现这样或那样的错误,下面举例分析,希望同学们能够引以为戒.
When solving binary equations, some students are not sure about their basic knowledge and their thinking of solving problems is unclear. These and other errors often occur. The following examples give some examples and hope that students can take warnings.