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 >

7=(31)/(7+4g)

解答

7 = \frac{31}{7 + 4 g}

解答

g = - \frac{9}{14}

+1

十进制

g = - 0.64285 \dots

求解步骤

7 = \frac{31}{7 + 4 g}

在两边乘以

7 + 4 g

7 (7 + 4 g) = 31

两边除以

7

7 + 4 g = \frac{31}{7}

将

7

到右边

4 g = - \frac{18}{7}

两边除以

4

g = - \frac{9}{14}

验证解

找到无定义的点（奇点）:

g = - \frac{7}{4}

将不在定义域的点与解相综合:

g = - \frac{9}{14}

作图

流行的例子

(3-x)/((x-4))= 4/((4-x))

\frac{3 - x}{( x - 4 )} = \frac{4}{( 4 - x )}

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

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

\frac{- 5}{7 \cdot x - 2} = 0

x + 3 = x (\frac{3}{x}) - 5 x

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

\frac{1}{( ( x - 1 ) ( x - 2 ) )} + \frac{1}{( ( x - 2 ) ( x - 3 ) )} = \frac{2}{3}