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受欢迎的代数 >

solvefor a,6b= 7/((5-a))(a)

解答

求解

a, 6 b = \frac{7}{( 5 - a )} (a)

解答

a = \frac{30 b}{6 b + 7}; b \neq = - \frac{7}{6}

求解步骤

6 b = \frac{7}{( 5 - a )} (a)

化简

\frac{7}{5 - a} (a) : \frac{7 a}{5 - a}

6 b = \frac{7 a}{5 - a}

在两边乘以

5 - a

6 b (5 - a) = 7 a

展开

6 b (5 - a) : 30 b - 6 ab

30 b - 6 ab = 7 a

将

30 b

到右边

- 6 ab = 7 a - 30 b

将

7 a

para o lado esquerdo

- 6 ab - 7 a = - 30 b

分解

- 6 ab - 7 a : - a (6 b + 7)

- a (6 b + 7) = - 30 b

两边除以

- (6 b + 7); b \neq = - \frac{7}{6}

a = \frac{30 b}{6 b + 7}; b \neq = - \frac{7}{6}

作图

流行的例子

(6.9^1)/x-(13.6^1)/x+(6.4^1)/x =0

\frac{6. 9 ^{1}}{x} - \frac{13. 6 ^{1}}{x} + \frac{6. 4 ^{1}}{x} = 0

x/((x^2-5x+6))+((x^2-9))/(((x-3)^2))=1

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