解方程(组):(1){4x-y=-2,3x+y=9} (2)3/(1-a)=a/(a-1)-5
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/05 18:31:42
![解方程(组):(1){4x-y=-2,3x+y=9} (2)3/(1-a)=a/(a-1)-5](/uploads/image/z/2546559-63-9.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%88%E7%BB%84%EF%BC%89%EF%BC%9A%EF%BC%881%EF%BC%89%EF%BD%9B4x-y%3D-2%2C3x%2By%3D9%EF%BD%9D+%EF%BC%882%EF%BC%893%2F%EF%BC%881-a%EF%BC%89%3Da%2F%EF%BC%88a-1%EF%BC%89-5)
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