Math writing

In math I have just recently finished 2-8 math lesson. In this lesson was algebra, it was interesting because this was our first year of that type of math. Somethings I learned was to to find what y or any other letter was and turn it into a number or frase. And there is also tables were lets say we had to add y+4 then the next colem over would say y then there would be what you would add to y and add to 4 to = the answer. And other things like,4x=16 so you had to write and solve an equation. That was the hardest thing for me in this lesson.