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受欢迎的代数 >

5x= 3/x-11/2

解答

5 x = \frac{3}{x} - \frac{11}{2}

解答

x = \frac{2}{5}, x = - \frac{3}{2}

+1

十进制

x = 0.4, x = - 1.5

求解步骤

5 x = \frac{3}{x} - \frac{11}{2}

乘以最小公倍数

10 x^{2} = 6 - 11 x

解

10 x^{2} = 6 - 11 x : x = \frac{2}{5}, x = - \frac{3}{2}

x = \frac{2}{5}, x = - \frac{3}{2}

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 = \frac{2}{5}, x = - \frac{3}{2}

作图

流行的例子

5/(x+4)+x/(x-2)=1

\frac{5}{x + 4} + \frac{x}{x - 2} = 1

24 = \frac{5}{x}

108=(38.8)/(1+12x)*4

108 = \frac{38.8}{1 + 12 x} \cdot 4

(-1)/(x-1)=1-2/(x+5)

\frac{- 1}{x - 1} = 1 - \frac{2}{x + 5}

x + \frac{1}{x} = - 6