A; 3A; 9ª
A+3A+9A=117
13A=117
A=9
3A=3(9)=27
9A=9(9)=81
SOLUCION: 9,27, 81
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A; 3A; 9ª
A+3A+9A=117
13A=117
A=9
3A=3(9)=27
9A=9(9)=81
SOLUCION: 9,27, 81