解三元一次方程组的基本思想是消元,即先将三元转化为二元、再将二元转化为一元,最终达到求出未知数的值的目的.下面举例分析三元一次方程组的解法.第一,对于一些特殊的方程组,可根据方程组中方程的特点,采用一些特殊的解法(如整体求解、设比例系数等)来消元. The basic idea of ​​solving a ternary system of equations is elimination, that is, the first ternary into binary, then the binary into one dollar, and ultimately reach the purpose of finding the value of the unknown. The following example analysis of ternary equations Solution: First, for some special equations, we can use some special solutions (such as global solution and proportional coefficient) to eliminate the elements according to the characteristics of the equations in the system.