Children books

The library has 2748 books, three times more for adults than for children. Thus, the library has 2748 books for adults and 2748 books for children.

Final Answer:

a =  2061
b =  687

Step-by-step explanation:

a+b=2748 a=3b  a=3 b  a+b=2748 a3b=0  Row2Row1Row2 4b=2748  b=42748=687 a=2748b=2748687=2061  a=2061 b=687



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