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受欢迎的代数 >

5x+7-x-2=6x+3x-16

解答

5 x + 7 - x - 2 = 6 x + 3 x - 16

解答

x = \frac{21}{5}

+1

十进制

x = 4.2

求解步骤

5 x + 7 - x - 2 = 6 x + 3 x - 16

对同类项分组

5 x - x + 7 - 2 = 6 x + 3 x - 16

同类项相加:

5 x - x = 4 x

4 x + 7 - 2 = 6 x + 3 x - 16

数字相加/相减:

7 - 2 = 5

4 x + 5 = 6 x + 3 x - 16

同类项相加:

6 x + 3 x = 9 x

4 x + 5 = 9 x - 16

将

5

到右边

4 x = 9 x - 21

将

9 x

para o lado esquerdo

- 5 x = - 21

两边除以

- 5

x = \frac{21}{5}

作图

流行的例子

solvefor z,-20+5p=7z

so l v e f or z, - 20 + 5 p = 7 z

12(r+3)=2(r+5)-3r

12 (r + 3) = 2 (r + 5) - 3 r

27 p - 23 = - 77

6 x - 4 = 3 x + 5

- \frac{5}{6} a = 1