Question

sa se afle nr a,b, c stiind ca a+b+c=743,a+b=422b+c=529

Answer 1

$a+b+c=743 \\ a+b=422 \\ b+c=529 \\ a+b+c=743 \Rightarrow 422+c=743 \Rightarrow c=743-422 \Rightarrow \boxed{c=321} \\ b+c=529 \Rightarrow b+321=529 \Rightarrow b=529-321 \Rightarrow \boxed{b=208} \\ a+b=422 \Rightarrow a+208=422 \Rightarrow a=422-208 \Rightarrow \boxed{a=214} \\ Verificare : 214+208+321=422+321=\boxed{743}$