问题
解答题
解方程：
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答案
方程的两边同乘（x-3），得
2-x-1=3（x-3），
解得x=2.5．
检验：把x=2.5代入x-3=-0.5≠0．
∴原方程的解为：x=2.5．
搜题请搜索小程序“爱下问搜题”
解方程：
|
方程的两边同乘（x-3），得
2-x-1=3（x-3），
解得x=2.5．
检验：把x=2.5代入x-3=-0.5≠0．
∴原方程的解为：x=2.5．
| 完形填空。 | ||||
| On Thursday, there are no 1 classes in Wang Lin's class. They work on a farm. They want to help the farmers 2 apples. The farm is very far from their school, so they go there 3 bus. There are 4 of foreign students in the class. Some 5 from Canada. And some 6 England and America. Now they are 7 the bus to the farm. They are singing and 8 on it. They are very happy because they think 9 apples is a fun 10 . And they can fly kites and swim in the small river near there after work. | ||||
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