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Afla nr a,b,c, around CA a+b=300,b+c=500,iar a+c=400


Răspuns :

aduni cele 3 relatii si rezulta:
2(a+b+c)=1200/:2
a+b+c=600
le introduci in ecuatiile date in cerinta si rezulta:
a=600-500=100
b=600-400=200
c=600-300=300