1 . 若,求x的值.
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2 . 若
是方程
的解,则a的值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f41809610e1d1c9149fbdb17f69c2ab.png)
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2024-03-18更新
|
42次组卷
|
2卷引用:江苏省无锡市滨湖区2022-2023学年七年级上学期期中数学试题
3 . 解方程:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa0af58ae54600df7f6cbe7ebc4d918e.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa0af58ae54600df7f6cbe7ebc4d918e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a2fb67b22029cd93fd3c7d0440af79.png)
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4 . 解方程:
(1)
;
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2370f91dffa0f1a39ecf38a6717000a7.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/251dee6dd86a86c3888e68f9ffb1634b.png)
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5 . 解下列方程(组):
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307d61301f345403afca280c0eb54b3b.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307d61301f345403afca280c0eb54b3b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0ed9a30cd1abe206b57601186fac4a.png)
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6 . 如图,在
的幻方中,填入9个数字,使得每一横行、每一竖列以及每条对角线上的三个数之和都相等,按照以上规则填成的幻方中,则x的值为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777d8fccf0cf8b55a68488fe48b78744.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/67379d32-3e1e-4fee-8546-358faa162339.jpg?resizew=99)
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7 .
是关于
的二元一次方程,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179778db3a62f2196dc1f57c56902877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
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2024-03-15更新
|
333次组卷
|
3卷引用:江苏省无锡市江阴市长泾第二中学2023-2024学年七年级下学期3月月考数学试题
8 . 若
是关于x的一元一次方程
的解,则常数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5979d034bb79f808634347f29f280f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.3 | B.2 | C.![]() | D.![]() |
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9 . 解方程:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce04d2826612b516e04b519092fa8645.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce04d2826612b516e04b519092fa8645.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86a59da9ac4b91e586a8cddb6bad71d.png)
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10 . 对于有理数a,b,定义一种新运算“※”规定
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/d2e9b32c-bcf0-4a63-a49f-98ec2bc98a08.png?resizew=359)
(1)计算
______;
(2)当a,b在数轴上的位置如图所示时,化简
;
(3)已知
,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d370f24de24f2a15930f929d92b4565f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/14/d2e9b32c-bcf0-4a63-a49f-98ec2bc98a08.png?resizew=359)
(第24题)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd94ab106c40ec4180a4be8b47607f8.png)
(2)当a,b在数轴上的位置如图所示时,化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cbd66ba33c05d8ed6c170e905c159e4.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce75f9d211e744860be7acbde7fbeccf.png)
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