(1)解方程组
;
(2)解不等式组
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc84add8a1a30c9cff1689b4a82b161.png)
(2)解不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457c43d512de40263817721dcd9945de.png)
更新时间:2020-10-17 21:55:40
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【推荐2】解下列方程组
(1)
(代入消元法)
(2)
(加减消元法)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40ef8a3753741d26b2ae99a9e30194e4.png)
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab7e0024ed346885419a3de23780a2d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/401db0f4d238e06e19b346b55f61b68c.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40ef8a3753741d26b2ae99a9e30194e4.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9c40512c5b6ba1722101066161de1a.png)
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