Răspuns :
a+b+c=113
a+b=56
⇒56+c=113
⇒c=113-56
⇒c=57;
⇒b=c/3
⇒b=57/3
⇒b=19;
⇒a=56-19
⇒a=37;
Verificare 37+19+57=56+57=113;
a+b=56
⇒56+c=113
⇒c=113-56
⇒c=57;
⇒b=c/3
⇒b=57/3
⇒b=19;
⇒a=56-19
⇒a=37;
Verificare 37+19+57=56+57=113;
a+b+c=113
a+b=56
113-56=57(primul numar)
57:3=19(al doilea numar)
56-19=37(al treilea numar)
P:57+19+37=113(suma numerelor)
a+b=56
113-56=57(primul numar)
57:3=19(al doilea numar)
56-19=37(al treilea numar)
P:57+19+37=113(suma numerelor)