help me with this math problem

Question

A group of entrepreneurs opened a store that sells attire from their school. Sales for the group were 3 thousand dollars more the second year than the first year, and sales for the third year were double the sales for the second year. If sales for the third year totaled 32 thousand dollars, what were the sales in the first year?

Answer 1

Let years be x, y, z, first, second, third years.

x = y - 3000

z = 2y

z = 32000

32000 = 2y

y = 16000

x = 13000