Răspuns :
a + b = 35 → suma
a - b = 7 → diferenta
________________ → adun relatiilea
2 × a = 42
a = 42 : 2
a = 21
b = 21 - 7 ⇒ b = 14
___________________
a × b = 21 × 14 = 294 → produsul celor doua numere
a + b = 35 → suma
a - b = 7 → diferenta
________________ → adun relatiilea
2 × a = 42
a = 42 : 2
a = 21
b = 21 - 7 ⇒ b = 14
___________________
a × b = 21 × 14 = 294 → produsul celor doua numere