Divide by -2.2.
... |2.2x -3.3| = 3.3
Resolve to two equations:
... -3.3 = 2.2x -3.3 . . . . . . when the argument of the absolute value is negative
... 0 = 2.2x . . . . add 3.3
... 0 = x . . . . . . . divide by 2.2
... 2.2x -3.3 = 3.3 . . . . . . when the argument of the absolute value is positive
... 2.2x = 6.6 . . . . add 3.3
... x = 3 . . . . . . . . . divide by 2.2
The appropriate choice is ...
... x=0 or x=3 . . . . corresponds to the last selection