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daca a,bc barat + b,ca barat + c, ab barat =8,88 atunci determinati a+ b + c.

Răspuns :

100a+10b+c+100b+10c+a+100c+10a+b=888
111a+111b+111c=888
111(a+b+c)=8*111
a+b+c=8