论文部分内容阅读
解二元一次方程组的基本方法是消元,或代入消元,或加减消元,具体怎样消元是有讲究的. 例1 解方程组分析通常的做法是①×13-②×15.消y.
The basic method for solving the binary system of primary equations is to eliminate the element, or to replace it, or to add or subtract the elimination element. The specific method of how to eliminate the element is exquisite. Example 1 The solution to the equations analysis is usually 1×13-2×15. . Consumer y.