Răspuns:
a+b+c=163;
⇒[a+b]-c=67;
⇒[b+c]-a=37;
⇒a+b=67+c;
⇒67+c+c=163
⇒67+2c=163⇒2c=163-67⇒2c=96⇒c=48[al treilea numar];
⇒b+c=a+37
⇒b+48=a+37
⇒b+11=a⇒b+11+b+48=163
⇒2b+59=163⇒2b=163-59⇒2b=104⇒b=52;[al doilea numar];
⇒a=52+11⇒a=63[primul numar];
Ps:primul meu raspuns,asa ca nu stiu daca e 100% corect :)) )