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受欢迎的代数 >

3x-2(2x+3)=5-[2x-3(4-x)]

解答

3 x - 2 (2 x + 3) = 5 - [2 x - 3 (4 - x)]

解答

x = \frac{23}{4}

+1

十进制

x = 5.75

求解步骤

3 x - 2 (2 x + 3) = 5 - [2 x - 3 (4 - x)]

乘开

- 2 (2 x + 3) : - 4 x - 6

3 x - 4 x - 6 = 5 - [2 x - 3 (4 - x)]

同类项相加:

3 x - 4 x = - x

- x - 6 = 5 - [2 x - 3 (4 - x)]

展开

5 - (2 x - 3 (4 - x)) : - 5 x + 17

- x - 6 = - 5 x + 17

将

6

到右边

- x = - 5 x + 23

将

5 x

para o lado esquerdo

4 x = 23

两边除以

4

x = \frac{23}{4}

作图

流行的例子

7-(-8)-x=4-(2-9)

7 - (- 8) - x = 4 - (2 - 9)

9 v - 14 = 6 v - 2

因式分解 y^2-9y+18

f a c t or y^{2} - 9 y + 18

x^{2} - 2 x - 48 < 0

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

- 2 + \frac{x}{x + 2} \leq \frac{1 - x}{x - 2}