请阅读某同学解下面分式方程的具体过程．解方程1x-4+4x-1=2x-3+3x-2．1x-4-3x-2=2x-3-4x-1，①-2x+10x2-6x+8=-2x+10x2-4x+3，②1x2-6x+8

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