[x-5-5(x-5)/x]/x=16/25
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[x-5-5(x-5)/x]/x=16/25[x-5-5(x-5)/x]/x=16/25[x-5-5(x-5)/x]/x=16/25[x-5-5(x-5)/x]/x=16/25x-5-5(x-5)/x
[x-5-5(x-5)/x]/x=16/25
[x-5-5(x-5)/x]/x=16/25
[x-5-5(x-5)/x]/x=16/25
[x-5-5(x-5)/x]/x=16/25
x-5-5(x-5)/x=16x/25
5(x-5)/x=x-5-16x/25=9x/25-5
5(x-5)=9x^2/25-5x
125(x-5)=9x^2-125x
125x-625=9x^2-125x
9x^2-250x+625=0
(x-25)(9x-25)=0
x=25,x=25/9
分式方程要检验
经检验,成立
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