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代入消元法和加减消元法是解二元一次方程组的常用方法,但是对于一些特殊的二元一次方程组.我们可以根据题目的结构特点,选择恰当的方法灵活求解.一、整体代入法
Substitution elimination method and addition and subtraction elimination method is a common method for solving binary linear equations, but for some special binary linear equations, we can select the appropriate method to solve the problem flexibly according to the structural characteristics of the subject. Substitution