Hello!
[tex]\large\boxed{x = 1}[/tex]
-x - 3 = 2x - 6
Begin by adding x to both sides:
-x + x - 3 = 2x + x - 6
-3 = 3x - 6
Add 6 to both sides:
-3 + 6 = 3x - 6 + 6
3 = 3x
Divide both sides by 3:
3/3 = 3x/3
x = 1.
