分式方程3/x+6/x-1=7/x^-x的解为x=______
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![分式方程3/x+6/x-1=7/x^-x的解为x=______](/uploads/image/z/227267-35-7.jpg?t=%E5%88%86%E5%BC%8F%E6%96%B9%E7%A8%8B3%2Fx%2B6%2Fx-1%3D7%2Fx%5E-x%E7%9A%84%E8%A7%A3%E4%B8%BAx%3D______)
分式方程3/x+6/x-1=7/x^-x的解为x=______
分式方程3/x+6/x-1=7/x^-x的解为x=______
分式方程3/x+6/x-1=7/x^-x的解为x=______
3/x+6/(x-1)=7/(x^2-x)
3/x+6/(x-1)-7/(x^2-x)=0
3/x+6/(x-1)-7/x(x-1)=0
3(x-1)/x(x-1)+6x/x(x-1)-7/x(x-1)=0
[3(x-1)+6x-7]/x(x-1)=0
[3x-3+6x-7]/x(x-1)=0
[9x-10]/x(x-1)=0
9x-10=0
x=10/9
经检验x=10/9是方程的解
3/x+6/(x-1)=7/(x^2-x)
3/x+6/(x-1)-7/(x^2-x)=0
3/x+6/(x-1)-7/x(x-1)=0
3(x-1)/x(x-1)+6x/x(x-1)-7/x(x-1)=0
[3(x-1)+6x-7]/x(x-1)=0
[3x-3+6x-7]/x(x-1)=0
[9x-10]/x(x-1)=0
9x-10=0
x=10/9
经检验x=10/9是方程的解
3/x+6/(x-1)=7/(x²-x)
9x/[x(x-1)]=7/(x²-x)
x=10/9
能不能先说明x^是神马东东啊?