Hey there! :)
To find the value of x - 4, we first need to find the value of x.
So, we must solve 2x - 6 = -2
To do this, we must isolate x.
So, let's start off by adding 6 to both sides.
2x = -2 + 6
Simplify.
2x = 4
Divide both sides by 2.
x = 2
So, now let's plug in "2" for x in x - 4.
x - 4
(2) - 4
Simplify.
-2
So, the value of "x - 4" is -2.
~Hope I helped!~