Answer:
x is any real number
Step-by-step explanation:
The simplified form of the equation is ...
-2x -6 = -2x -2 -4
-2x -6 = -2x -6 . . . . . . . . true for any x
x is any real number.
___
The equation effectively resolves to 0x=0, which will always be true for any value of x.
