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2°día: × x
Queda: 22 km
⇒ x + x + 22 = x
14x + 5x + 22 = x
19x + 440 = 20x (porque el mcm es 20 y afecta a todos)
440 = 20x - 19x
440 = x
Rpt: La distancia entre ambas ciudades es 440 km