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三元一次方程组的常规解法是:通过代入法或加减法把三元一次方程组转化为二元一次方程组,再把二元一次方程组转化为一元一次方程从而解出方程组.但有时我们也可根据三元一次方程组的结构特点采取非常规的方法来解方程组.常见的方法有:
The conventional solution of the ternary one-time equations is to convert the ternary one-time equations into the binary one-time equations by the substitution method or the addition-subtraction method, and then convert the binary one-time equations into the first-order equations to solve the equations. Sometimes we can also take an unconventional approach to solving a system of equations based on the structural features of a ternary system of equations. Common methods are: