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受欢迎的代数 >

solvefor x,(2a)/(x-1)=a-b

解答

求解

x, \frac{2 a}{x - 1} = a - b

解答

x = \frac{3 a - b}{a - b}; a \neq = b

求解步骤

\frac{2 a}{x - 1} = a - b

在两边乘以

x - 1

2 a = a (x - 1) - b (x - 1)

交换两边

a (x - 1) - b (x - 1) = 2 a

乘开

a (x - 1) : a x - a

a x - a - b (x - 1) = 2 a

乘开

- b (x - 1) : - b x + b

a x - a - b x + b = 2 a

将

a

到右边

a x - b x + b = 3 a

将

b

到右边

a x - b x = 3 a - b

分解

a x - b x : x (a - b)

x (a - b) = 3 a - b

两边除以

a - b; a \neq = b

x = \frac{3 a - b}{a - b}; a \neq = b

作图

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