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a+330=b-184=c+500=684

Răspuns :

A+330=684
A=684-330
A=354
b-184=684
b=684+184
b=868
c+500=684
c=684-500
c=184
c=684-500
c= 184
b=184+184
b= 368
a=368-330
a= 38