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受欢迎的代数 >

(4x+3)-(10x+11)=7+(13-4x)

解答

(4 x + 3) - (10 x + 11) = 7 + (13 - 4 x)

解答

x = - 14

求解步骤

(4 x + 3) - (10 x + 11) = 7 + (13 - 4 x)

去除括号:

(a) = a

4 x + 3 - (10 x + 11) = 7 + 13 - 4 x

数字相加:

7 + 13 = 20

4 x + 3 - (10 x + 11) = - 4 x + 20

展开

4 x + 3 - (10 x + 11) : - 6 x - 8

- 6 x - 8 = - 4 x + 20

将

8

到右边

- 6 x = - 4 x + 28

将

4 x

para o lado esquerdo

- 2 x = 28

两边除以

- 2

x = - 14

作图

流行的例子

9 x + 9 = 10 x - 4

3 (b + 1) = 15

- 1.4 x - 3.9 = - 6.4

solvefor x,L+x=7L

so l v e f or x, L + x = 7 L

solvefor A,A= 1/2 (3m-5m)12

so l v e f or A, A = \frac{1}{2} (3 m - 5 m) 12