Answer:
18 men attended the baseball game, and 30 women attended the baseball game. 
Explanation:
Let the number of men in attendance be x and the number of women in attendance be x+12. 
No. of men + No. of women = 48 
x + x + 12 = 48 
2x + 12 = 48 
2x = 48 - 12
 = 36 
x = 36 ÷ 2
x = 18 
x+12: 18 + 12 = 30