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  • Utilizator Brainly
2014-03-19T20:56:20+02:00
A+b+c=81
a:b=4⇒a=4b
c:b=2 rest 4⇒c=2b+4
Acum inlocum in ecuatie :
4b+b+2b+4=81
7b=81-4
7b=77
b=11
a=4x11
a=44
c=2x11+4
c=26

44+11+26=81