解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7)_数学解答

解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7)

人气：360 ℃　时间：2020-01-28 19:09:07

解答

((X-2)(X-4)-(X-3)^2)/(X-3)(X-4)=((X-5)(X-7)-(X-6)^2)/(X-6)(X-7),
-1/(X^2-7X+12)=-1/(X^2-13X+42),
6X=30,
X=5.