3[-x + (2 X + 1) ] = x - 1.

x=-2

Step-by-step explanation:

3[-x + (2x + 1) ] = x - 1

Remove inside parentheses:

3[-x + 2x + 1] = x - 1

Collect like terms:

3 (x+1) = x-1

Multiply parentheses by 3:

3x + 3 = x - 1

Move terms:

3x - 3 = x - 1

Collect like terms:

2x = - 1 - 3

Calculate:

2x = - 4

DIvide both sides by 2:

x = - 2

Solution:

x = - 2

Answer: x = - 2 2x

Step-by-step explanation:

3[-x + (2x + 1) ] = x - 1

3 [ - x + 2x + 1] = x - 1

-3x + 6 + 3 = x - 1

Collecting like terms, we have:

-3x + 6x - x = - 1 - 3

2x = - 4

Divide both sides by 2, we have

x = - 4/2 = - 2