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a+b+c=755 a+b=513 b+c=354 Aflati a,b,c

Răspuns :

scazand ultimele doua relatii avem
a-c=513-354=159
Inlocuind in prima relatie vom obtine
513+c=755 , deci c=755-513=242 ⇒ b=354-c=354-242=112 si a=513-b=513-112=401
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Verificare: a+b+c=401+112+242=755  OK
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