已知数轴有A、B、C三点,位置如图,分别对应的数为x、2、y,若,BA=BC,求4x+4y+30的值.
![](https://img.xkw.com/dksih/QBM/2017/10/6/1796494354644992/1819727106924544/STEM/aa5c5c90dc4e4779a868eb7cbc401cbb.png?resizew=153)
更新时间:2017-11-18 09:47:11
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解答题-计算题
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【推荐2】已知有理数
在数轴上的位置如图所示.
(1)用“
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______ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c6a7fc85d183a55718f23e01494e4aa.png)
(2)化简:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/28/89f3de1e-45dc-4df5-ac0a-55104c746a2e.jpg?resizew=162)
(1)用“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392cdb9d30684cce244bef94b8d861b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea712984ea5017140e20bee226fd5af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f2416d1f75a45a314331146550832e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c6a7fc85d183a55718f23e01494e4aa.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6766dffa3a1ff9d67b8d1d6250bb4c45.png)
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