若方程组
的解满足
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7eb4d9e3e95a3034a79a2bcd57f949b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be2080819b7107fb9422cf0a620b64b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.2018 | B.2019 | C.2020 | D.2021 |
更新时间:2020-04-26 09:29:10
|
【知识点】 二元一次方程组的特殊解法解读