初二分式方程，要详细过程，在线等！好的加分！急急急！！！
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(4x-6)/(x-2)-(7x-5)/(x-1)=(x-8)/(x-6)-(4x-30)/(x-7)
4+2/(x-2)-[7+2/(x-1)]=1-2/(x-6)-[4-2/(x-7)]
2/(x-2)-2/(x-1)=2/(x-7)-2/(x-6)
1/(x-2)-1/(x-1)=1/(x-7)-1/(x-6)
1/(x-1)(x-2)=1/(x-6)(x-7)
(x-1)(x-2)=(x-6)(x-7)
x^2-3x+2=x^2-13x+42
10x=40
x=4
4+2/(x-2)-[7+2/(x-1)]=1-2/(x-6)-[4-2/(x-7)]
2/(x-2)-2/(x-1)=2/(x-7)-2/(x-6)
1/(x-2)-1/(x-1)=1/(x-7)-1/(x-6)
1/(x-1)(x-2)=1/(x-6)(x-7)
(x-1)(x-2)=(x-6)(x-7)
x^2-3x+2=x^2-13x+42
10x=40
x=4
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