若
是二元一次方程
的一个解,则m的值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c40c4c5bb88d726e091d731230b087b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf6454c3c2f8b932f360ed40c459f30.png)
更新时间:2024-05-25 08:26:41
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【推荐2】我们知道,无限循环小数都可以化成分数.例如:将
化成分数时,可设
,则有
,
,
,解得
,即
化成分数是
.仿此方法,将
化成分数是____________ .
![](https://img.xkw.com/dksih/QBM/2016/6/21/1574212309377024/1574212315643904/STEM/c64729977f6941debb8ce999b4678c2a.png?resizew=22)
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【推荐1】已知关于
、
的方程组
的解是正数,则
的取值范围______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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【推荐2】
是二元一次方程2x+by=-2的一个解,则b的值等于____ -.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b0ad1f4d672924b4c0958c88c14ee1.png)
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