1 . 下列变形属于移项的有( )
(1)由
,得
,(2)由
,得
,
(3)由
,得
,(4)由
,得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b028286277ca44bf85a50ef447dbfd6.png)
(1)由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2073963bb9c9d2cb773cd0d404fc7ab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3bcfd5a156f021781d8c8e7bd19f19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ab3158fb79a20aedbe4e6fe9dedfdbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9efa7142faca6026b5d24cb11e75b49.png)
(3)由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b827b0b2fe4f5d1a3ff83f2b3d943d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c13e192f59238f2784ad60268d6138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756522d4c987d39e00b4c113b68ba996.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b028286277ca44bf85a50ef447dbfd6.png)
A.1个 | B.2个 | C.3 个 | D.4个 |
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2 . 解方程:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0867d08aceb06a4f6c8ca39f35539d5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b97e08788600be24412be5f09d540f5.png)
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3 . 解方程.
(1)
;
(2)
;
(3)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a189e5a713e0bb1e9e49d3943963d767.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa210e5ddb149a505254304ee2f6005.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f260d758676813a9ff2751973cb6f66.png)
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4 . 解方程:
(1)
;
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4aafef735d8ea91a3409ad9e731cfc.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55557a1755ea6014d184ef6914f9c174.png)
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2024-02-20更新
|
63次组卷
|
2卷引用:山东省枣庄市薛城区2023-2024学年七年级上学期期末数学试题
5 . 如果
是关于
的方程
的解,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba53065eb180a682305fddb95d14b62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd71acec82cea5cbcb810640ce1481d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.2 | D.![]() |
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6 . 已知
是方程
的解,则
值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb69214bffa2c2cb16e7d2cd83f37089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b92e75094d6f63e1999c8cb2e03cf2c0.png)
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7 . 某同学解方程
时,把( )处的数字看错,得错解
,则他把( )处看成了
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b3e649ce2311e82ae2a8a1e32196ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
A.3 | B.6 | C.9 | D.12 |
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8 . 下列方程变形中,正确的是( )
A.方程![]() ![]() |
B.方程![]() ![]() |
C.方程![]() ![]() |
D.方程![]() ![]() |
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9 . 已知关于
的方程
的解为负整数,则整数
所有可能取值的和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5c502a2a4df53ff3ec6e1c242e028a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.0 | D.1 |
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10 . 当
取何值时,代数式
与
的值互为相反数( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d638340a49e04e72866f9f701885555b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd85c1946ac8fd3566823a2324ecc1e.png)
A.![]() | B.![]() | C.5 | D.![]() |
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