一叶障目不见泰山哲学:帮忙解方程

来源:百度文库 编辑:中科新闻网 时间:2024/05/06 10:27:07
(1/x-7)-(1/x-6)=(1/x-5)-(1/x-4)

1/(x-7)-1/(x-6)=1/(x-5)-1/(x-4)
[(x-6)-(x-7)]/[(x-7)(x-6)]=[(x-4)-(x-5)]/[(x-5)(x-4)]
1/[(x-7)(x-6)]=1/[(x-5)(x-4)]
(x-7)(x-6)=(x-5)(x-4)
x^2-13x+42=x^2-9x+20
-4x=-22
x=5.5

(1\x-7)-(1/x-6)=(1/x-5)-(1/x-4)
1/x-7-1/x+6=1/x-5-1/x+4