Question

aflati a,b,c stiind ca a+b=c,a-b=b,b+c =32

Answer 1

a+b = c; a-b = b si b+c = 32. Adunam primele 2 egalitati → 2a = b+c, dar stim ca b+c = 32 → 2a=32 → a = 16. a-b = b → a = 2b → b = 8; b+c = 32 → c = 24