Raspunsul nostru: Da, inmultind cu 4 obtinem ca "4 caiete si 8 stilouri costa 280.000 lei". Asadar, in acest moment avem urmatoarele informatii: 4C + 3S = 130.000 4C + 8S = 280.000 (4 x 70.000 = 280.000) Intrebare - Avand acelasi numar de caiete, in ce consta diferenta dintre cele doua sume, 280.000 - 130.000 = 150.000 ?
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3 la puterea 4
