You can put this solution on YOUR website!
You MUST do the same thing to BOTH sides of the equation
If you do that, you won't change the truth of the equation,
namely that one side is equal to the other
OK, I'll subtract from both sides (note that in this step, I'm just rewriting it,
not doing the same thing to both sides) (again, I'm just rewriting it)
Now I will add to both sides (just rewriting it)
Now I will divide both sides by (I did the same thing to both sides) answer
(note that is the same as