You can put this solution on YOUR website! Yes . good for you
For all problems like this, problems in one variable, the process you need to follow is to isolate that variable on one side of the equal sign and get everything else on the other side.
for this one, all you need to so is get the '2' from the left side to the right side. So divide both sides of the equation by 2. Think of the equal sign as a mid point of a balance. Whatever you do to one side, if you do the same thing to the other side, then the balance is still true.
That is a lot of 'steps' to get to the answer. Do those steps a few times and you will start to feel comfortable with skipping a few of them. Soon, you will just divide both sides in one step.
Good luck!