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2014-11-09T12:54:45+02:00
A+b+c=490
a=c*2+49
b=c*1+53
Inlocuim in prima relatie avem 2c+49+c+53+c=490, adia 4c=490--102
4c=388, c=388 impartit la 4=97
c=97
a=97*2+49=194+49=243
b=97+53=150
verificare 243+150+97=393+97=490