Explicación paso a paso:
×/5+126=×/2
×/5-×/2=-126
2×-5×= -1260
-3×= - 1260
×=1260/3
×=420litros
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Explicación paso a paso:
×/5+126=×/2
×/5-×/2=-126
2×-5×= -1260
-3×= - 1260
×=1260/3
×=420litros