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受欢迎的代数 >

2/x = 3/(x-2)-1

解答

\frac{2}{x} = \frac{3}{x - 2} - 1

解答

x = - 1, x = 4

求解步骤

\frac{2}{x} = \frac{3}{x - 2} - 1

乘以最小公倍数

2 (x - 2) = 3 x - x (x - 2)

解

2 (x - 2) = 3 x - x (x - 2) : x = - 1, x = 4

x = - 1, x = 4

验证解

找到无定义的点（奇点）:

x = 0, x = 2

将不在定义域的点与解相综合:

x = - 1, x = 4

作图

流行的例子

3/(x+3)= 5/(x+1)

\frac{3}{x + 3} = \frac{5}{x + 1}

solvefor R,I= V/R

so l v e f or R, I = \frac{V}{R}

\frac{2}{2 q + 3} = \frac{1}{8}

2 x - \frac{2}{x ^{3}} = 0

solvefor x,y= 1/x

so l v e f or x, y = \frac{1}{x}