7.2 There were 25 sparrows sitting on two bushes. After 5 sparrows flew from the first bush to the second, and 7 sparrows flew away from the second bush, it turned out that there were twice as many sparrows left on the first bush as on the second. How many sparrows were there on each bush initially?
7.2 On the first bush, there were 17 sparrows, and on the second, there were 8.

After 7 sparrows flew away, 18 remained. At this point, there were twice as many sparrows on the first bush as on the second. This means there were 12 sparrows on the first bush and 6 on the second. If we return 7 sparrows to the second bush and then move five sparrows from the second bush to the first, we will return to the initial situation. As a result, we get 12 + 5 = 17 sparrows on the first bush, and 6 + 7 - 5 = 8 sparrows on the second.