Libro: 6s
Revista: 3s
3 libros = 6s × 3 = 18s
4 revistas + 6s = 18s
Revista = (18s-6s) ÷ 4 = 3
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Verified answer
Libro: 6s
Revista: 3s
3 libros = 6s × 3 = 18s
4 revistas + 6s = 18s
Revista = (18s-6s) ÷ 4 = 3