Three times of a certain number is two times larger than half of it. If a certain number is y, then the equation is___

Three times of a certain number is two times larger than half of it. If a certain number is y, then the equation is___

Let a certain number be y. according to the series equation of equivalency relation, it is 3Y = 12Y + 2, or 3y-12y = 2, or 3y-2 = 12Y