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afla numerelea,b,c,stiind ca a+b+c=769,a+b=562,b+c=554



Răspuns :

a+b+c=769
a+b=562
b+c=554
562+c=769
c=769-562
c=207
b+207=554
b=554-207
b=347
a+347=562
a=562-347
a=215
a=769-554
a=215
b=769-562
b=207
207+c=554
c=554-207
c=347
V:215+207+347=769

Sper ca te-am ajutat si nu uita de Multumesc.