解三元一次方程组的基本思路是先消元,即化三元为二元,把三元一次方程组转化为二元一次方程组,再进行求解.这里的关键是消元,解题时若能根据题目的特点,灵活地进行消元,则可准确、快速地解出方程组.下面介绍几种常见的消元方法,供同学们参考. The basic idea of ​​solving the ternary equations is to eliminate the element first, that is, to convert ternary to binary, convert the ternary equations into binary equations, and then solve. The key here is to eliminate the element and solve the problem. According to the characteristics of the topic, the elimination of the elements can be done flexibly, and the equations can be solved accurately and quickly. The following describes several common elimination methods for students’ reference.