已知
是关于x,y的二元一次方程
=a
+5的一个解,那么a的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80ddf5c595c0eff128a9c5026642fb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.3 | B.2 | C.-2 | D.-3 |
更新时间:2022-08-31 17:35:54
|
【知识点】 已知二元一次方程组的解求参数
相似题推荐
单选题
|
容易
(0.94)
【推荐1】已知
是二元一次方程组
的解,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd06c43ff510688a0c59dc6c750e7bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aad918870d0db8b986767483b2cae95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf5c1d124e8e023fe8e8c5ef3412813.png)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
单选题
|
容易
(0.94)
【推荐2】关于
,
的方程组
的解是
,其中
的值被■盖住了,但不影响求出
的值,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b58ea388e8cc4e60611a4d8190a4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dc4823305d236fc3abf6c8484798c08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次