Question: Leila eats cake almost every week. Last week, she ate 6 cakes on Monday, 9 cakes on Friday, and on Saturday, she ate triple the number of cakes she ate on Monday. How many cakes does Leila eat?
Give me a solution to this problem
Answer: 
Combining Monday and Friday, Leila ate 6 + 9 = 15 cakes.
On Saturday, she ate 6 * 3 = 18 cakes.
Altogether, Leila ate 15 + 18 = 33 cakes.