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Mathematics, 05.11.2020 17:20 emilypzamora11

Un carpintero debe cortar una tabla de madera de 140cm en tres pedazos. El primer pedazo es de 8cm más largo que el doble de la longitud del segundo pedazo; y el tercer pedazo es tres veces la longitud del segundo pedazo. ¿Cuál es la longitud del segundo pedazo?

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