Răspunsuri

  • Utilizator Brainly
2014-02-23T11:09:24+02:00
A+b=123
a+83=2(b+49) ⇒ a=2b+98-83=2b+15
2b+15+b=123 ⇒ 3b=108, b=36
a=123-36=87