Răspuns :
nr. a si b
b=6a
2a+3b=1220
2a+3(6a)=1220
2a+18a=1220
20a=1220
a=1220:20
a=61
b=6x61=366
Fie ,,a " si ,,b " cele doua numere
b = 6 × a
2 × a + 3 × b = 1 220
2 × a + 3 × ( 6 × a ) = 1 220
2 × a + 18 × a = 1 220
20 × a = 1 220
a = 1 220 : 20
a = 61 → primul numar
b = 6 × 61 ⇒ b = 366 → al doilea numar