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How to do this math problem?
Solution: (1) Let the price of each T-shirt and each album be X yuan and Y yuan respectively.

2x+5y=200

x-y=9

Solution:

x=35

y=26

A: The prices of each T-shirt and each album are 35 yuan and 26 yuan respectively;

(2) If buying a T-shirt, buy an album (50-a).

35a+26(50-a)≥ 150035

a+26(50-a)≤ 1530

Solution: 22 2/9 ≤ A ≤ 25 2/3,

∫a is an integer,

∴a=23,24,25,

Then buy 27 albums, 26 albums and 25 albums.

Answer: ① If you buy 23 T-shirts, you will buy 27 albums; 2 buy 24 T-shirts and buy 26 albums; 3 I bought 25 T-shirts and bought 25 albums.