You can put this solution on YOUR website! Step 1: get all the terms containing y, and ONLY those terms, together on one side of the equation. In your formula, this is already done.
Step 2: factor out the common factor of y:
Do you see how to solve for y from there?
It might be hard to see the first few times you work a problem where you have to do this last step. But it's just like going from
to
What do you do there? You divide by 3 to leave the "x" by itself on the left side of the equation.
Do you see what you can divide both sides of the equation by in
to get y by itself?