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受欢迎的代数 >

7+(11)/z = 6/(z^2)

解答

7 + \frac{11}{z} = \frac{6}{z ^{2}}

解答

z = \frac{3}{7}, z = - 2

+1

十进制

z = 0.42857 \dots, z = - 2

求解步骤

7 + \frac{11}{z} = \frac{6}{z ^{2}}

乘以最小公倍数

7 z^{2} + 11 z = 6

解

7 z^{2} + 11 z = 6 : z = \frac{3}{7}, z = - 2

z = \frac{3}{7}, z = - 2

验证解

找到无定义的点（奇点）:

z = 0

将不在定义域的点与解相综合:

z = \frac{3}{7}, z = - 2

作图

流行的例子

solvefor x,(43)/x =18

so l v e f or x, \frac{43}{x} = 18

(3x)/(x+4)= 5/3

\frac{3 x}{x + 4} = \frac{5}{3}

(12(33000))/(33000+x)=2.75

\frac{12 ( 33000 )}{33000 + x} = 2.75

x/(5x+2)=4x-97-711-11

\frac{x}{5 x + 2} = 4 x - 97 - 711 - 11

\frac{7500}{l} + 12 l = 0