Answer:
x = 1, x = -1
Step-by-step explanation:
Those bars mean absolute value, meaning that whatever's inside them is always positive.
We can now rewrite our equation as:
x + 1 + 2 = 4
Now solve:
x + 1 + 2 = 4
x + 3 = 4
x = 1
x can equal 1 or -1.
Hope this helps!
