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Afla valorile literelor:
a+b+c=903 a+b=684 b+c=598


Răspuns :

c=903-684
c=219
a=903-598
a=305
b=684-305
b=379

a+b+c=903
a=903-b+c
a=903-598
a=305
c=903-a+b
c=903-684
c=219
b=903-a+c
b=903-524
b=379