问题描述：
解分式方程：1/X-2+1/X-6=1/X-7+1/X-1
1/X-2+1/X-6=1/X-7+1/X-1
1/(x-2)-1/(x-1)=1/(x-7)-1/(x-6)
(x-1-x+2)/(x-2)(x-1)=(x-6-x+7)/(x-7)(x-6)
1/(x-2)(x-1)=1/(x-7)(x-6)
(x-2)(x-1)=(x-7)(x-6)
x^2-3x+2=x^2-13x+42
13x-3x=42-2
10x=40
x=4 为什么要移向才能解出来
1/X-2+1/X-6=1/X-7+1/X-1
1/(x-2)-1/(x-1)=1/(x-7)-1/(x-6)
(x-1-x+2)/(x-2)(x-1)=(x-6-x+7)/(x-7)(x-6)
1/(x-2)(x-1)=1/(x-7)(x-6)
(x-2)(x-1)=(x-7)(x-6)
x^2-3x+2=x^2-13x+42
13x-3x=42-2
10x=40
x=4 为什么要移向才能解出来
问题解答：
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