Answer:
-3
Explanation:
You are trying to solve for x in this situation. So the first thing you want to do is choose a side (it doesn't matter in this situation bc there is an x on either side of the =) and isolate the x.
**I'm going to choose the left side cause why not** Add the -3 to both sides to get -x by itself:
-x + (−3) = x + 3
-x -3= x+3
* quick side note, when you add a negative number to a positive, it has the same effect as subtracting
-x=x+6
Now -x is by itself but there is still another x, so combine like terms again:
-2x=6
Now simplify by dividing -2 to both sides:
x=-3