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受欢迎的代数 >

4(-5+5a)-a=-3(8-5a)

解答

4 (- 5 + 5 a) - a = - 3 (8 - 5 a)

解答

a = - 1

求解步骤

4 (- 5 + 5 a) - a = - 3 (8 - 5 a)

乘开

4 (- 5 + 5 a) : - 20 + 20 a

- 20 + 20 a - a = - 3 (8 - 5 a)

同类项相加:

20 a - a = 19 a

- 20 + 19 a = - 3 (8 - 5 a)

展开

- 3 (8 - 5 a) : - 24 + 15 a

- 20 + 19 a = - 24 + 15 a

将

20

到右边

19 a = 15 a - 4

将

15 a

para o lado esquerdo

4 a = - 4

两边除以

4

a = - 1

作图

流行的例子

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