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受欢迎的代数 >

2x-1=(A+B)x-2A

解答

2 x - 1 = (A + B) x - 2 A

解答

x = \frac{- 2 A + 1}{2 - A - B}; A \neq = - B + 2

求解步骤

2 x - 1 = (A + B) x - 2 A

展开

(A + B) x - 2 A : A x + B x - 2 A

2 x - 1 = A x + B x - 2 A

将

1

到右边

2 x = A x + B x - 2 A + 1

两边减去

A x + B x

2 x - (A x + B x) = A x + B x - 2 A + 1 - (A x + B x)

化简

2 x - A x - B x = - 2 A + 1

分解

2 x - A x - B x : x (2 - A - B)

x (2 - A - B) = - 2 A + 1

两边除以

2 - A - B; A \neq = - B + 2

x = \frac{- 2 A + 1}{2 - A - B}; A \neq = - B + 2

作图

流行的例子

so l v e f or x, f = p

solvefor x,m^2x+1=m(x+1)

so l v e f or x, m^{2} x + 1 = m (x + 1)

solvefor x,-3x+y=18

so l v e f or x, - 3 x + y = 18

2.7927=(1-x)*0.4231+8.4739x

2.7927 = (1 - x) \cdot 0.4231 + 8.4739 x

24=a_{0}(0+3)(0+4)

24 = a_{0} (0 + 3) (0 + 4)