zs

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

受欢迎的代数 >

-18x+36=(16x-12)/(x+18)

解答

- 18 x + 36 = \frac{16 x - 12}{x + 18}

解答

x = - \frac{76 + 8746}{9}, x = \frac{8746 - 76}{9}

+1

十进制

x = - 18.83556 \dots, x = 1.94667 \dots

求解步骤

- 18 x + 36 = \frac{16 x - 12}{x + 18}

在两边乘以

x + 18

- 18 x (x + 18) + 36 (x + 18) = 16 x - 12

解

- 18 x (x + 18) + 36 (x + 18) = 16 x - 12 : x = - \frac{76 + 8746}{9}, x = \frac{8746 - 76}{9}

x = - \frac{76 + 8746}{9}, x = \frac{8746 - 76}{9}

验证解

找到无定义的点（奇点）:

x = - 18

将不在定义域的点与解相综合:

x = - \frac{76 + 8746}{9}, x = \frac{8746 - 76}{9}

作图

流行的例子

\frac{4}{h} = \frac{8}{10}

x(2/(3x-15))=180

x (\frac{2}{3 x - 15}) = 180

7+5/(x-2)= 4/(x-2)

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

0=(4x)/((1-x^2)^2)

0 = \frac{4 x}{( 1 - x ^{2} ) ^{2}}

910 = \frac{1000 + x}{x}