Answer:
The equation has three solutions:
x=

x=1
x =

Explanation:
||
|
| = 1
|
|
= 1 |
|
= - 1
|
| = 1+2 |
| = -1+2
|
|=3 |
| = 1
=3
= - 3
= 1
= - 1
x=
x∉∅ x=1

The union of these four solutions is:

I hope this is clearly and understandably written to you :)