Question

suma a doua numere este 890 674 iar diferenta lor este 890 654 afla numerele

Answer 1

fie x si t cele doua numere

x+t=890674=>x=890674-t

x-t=890654<=>890674-t-t=890654<=>-2t=-20=>t=10

x=890674-t=890674-10=890664

Answer 2

a+b=890.674

a-b=890.654 si le scadem(metoda reducerii)

2a=20

a=10

b=890.674-10 = 890.664

Se verifica, deci corect.