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There are 2 trees 🌳 at the exotic bird show (Tree “A” and “B”)
and on both trees are some exotic birds.
The birds of tree A say to the birds of tree B,
that if one of you comes to our tree, then our population will be double yours.
Then the birds of tree B tell to the birds of tree A
that if one of you comes here, then our population will be equal to that of yours..
How many birds in each tree?🙇
7 birds on tree A, 5 birds on tree B