-(x+1)=-6-2x

解答

- (x + 1) = - 6 - 2 x

x = - 5

求解步骤

- (x + 1) = - 6 - 2 x

展开

- (x + 1) : - x - 1

- x - 1 = - 6 - 2 x

将

1

到右边

- x = - 2 x - 5

将

2 x

para o lado esquerdo

x = - 5

so l v e f or x, 11 x - y + 28 = 0

2^{2} n = o (2^{n})

so l v e f or x, - 8 x + 3 y = 6

so l v e f or x, 2 x - 3 y - 2 z = 8

\frac{4 [ 3 ( 2 x + 1 ) + \frac{8}{4} ] + 120}{20} = \frac{250}{5}