已知关于
,
的二元一次方程组
.
(1)
,
之间满足的关系式是______;
(2)若
,求
的值.
![](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/61035ff204693eb82b847eadb9c19312.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a54eaac660f73c1a7ac26e5f5123d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2021-08-10 11:25:33
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【知识点】 已知二元一次方程组的解的情况求参数解读
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解答题-问答题
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【推荐1】(1)解方程:
.
(2)已知方程组
的解恰好是方程
的解,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f0587116c762ff3943086e75367ad0f.png)
(2)已知方程组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bed3a1bc3d23be1f195ace78cbb485c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f401373b5a835e640a06ef1e70f2db6.png)
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