在二元一次方程组的学习中,我们会经常遇到利用二元一次方程组的解求其中字母因数的题目.李老师为我们总结了几种解题方法,一起看看吧.方法一.直接代入求解直接将二元一次方程组的解代入已知方程组,转化为关于字母因数的新方程组求解. In the study of binary equations, we often encounter the problem of using the solution of binary linear equations to solve the problem of the letter factor, and then we can summarize several solutions to the problem. Directly into the solution directly to the solution of binary linear equations into known equations, into a new equation on the letter factor solution.