our objective here, is to get y on one side of the equal sign by itself. whatever we don't want on one side, we subtract it from both sides of the equation. so let's do that.

Let's get the y's on the left side. so i want to get rid of the 2y on the right, so subtract it from both sides.

Now let's get rid of the 1 on the left side

Now divide both sides by 2