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二元一次方程或二元一次方程组,是初中代数中首次出现的含有两个未知数的方程,由于学生对概念的理解不清和解题思路不明确,易犯一些错误或将解题过程变得复杂化.现举几例说明.
Binary first order equation or binary first order equation group is the first equation in the junior high school algebra that contains two unknowns. Because students have unclear understanding of concepts and unclear idea of problem solving, it is easy to make mistakes or change the problem solving process. Complicating. Now give a few examples.