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Total de la barda completa = x
Lo que ha pintado = 48m²
2/3 de x = 48m²
2/3 * x = 48m²
2x/3 = 48m²
2x = 48m² * 3
2x = 144m²
x = 144m²/2
x = 72m²
Respuesta.
La barda completa tiene 72m²
Ya ha pintado = 48m² que es
entonces
mcm = 3
2x = 144 m²
x = 72 m²