(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)

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(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)

(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)

(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)