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(5-x)/x =0

解答

\frac{5 - x}{x} = 0

解答

x = 5

求解步骤

\frac{5 - x}{x} = 0

\frac{f ( x )}{g ( x )} = 0 \Rightarrow f (x) = 0

5 - x = 0

将

5

到右边

- x = - 5

两边除以

- 1

x = 5

验证解

找到无定义的点（奇点）:

x = 0

将不在定义域的点与解相综合:

x = 5

流行的例子

\frac{3}{x} = 1.5

\frac{3}{x} = 12 x

2/x = 3/(x^2+1)

\frac{2}{x} = \frac{3}{x ^{2} + 1}

2+2/(x^{-4)}=3x

2 + \frac{2}{x ^{- 4}} = 3 x

solvefor x,2=(y-x)/(y+x)求解

x, 2 = \frac{y - x}{y + x}