A jazz concert brought in ​$157,000 on the sale of $7,600 tickets. If the tickets sold for $15 and $25 ​each, how many of each type of ticket were​ sold?

Answer 1

X+y = 7600

15x + 25y = 157000

15x + 25(7600-x) = 157000

15x + 190000 - 25x = 157000

-10x + 190000 = 157000

-10x = -33000

x = 3300

y = 4300