3[-x + (2 X + 1)] = x – 1.

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

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 is 270 degrees: -

to convert radians to degrees you multiply by 180/π

9π/ 6 * 180 / π

=   9 * 180 / 6

= 9 * 30

=   270 degrees   answer