A math question about a local hamburger shop and a combined number of hamburger they sold

Question

On Tuesday, a local hamburger shop sold a combined total of 336

 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Tuesday?

Answer 1

c+h = 336

c=3h

3h+h = 336

4h = 336

h = 336/4 = 84 hamburgers sold

c =3h = 3(84) = 252 cheeseburgers sold

252+84 = 336 total sold