Răspuns :
a+b+c=654
b:a=11a+10
b=11a+10
c:a=25r15
c=25a+15
inlocuim b si c
a+11a+10+25a+15=654
37a=654-25
a=629:37
a=17
b=17x11+10=197
c=25x17+15=440
proba 17+197+440=654
b:a=11a+10
b=11a+10
c:a=25r15
c=25a+15
inlocuim b si c
a+11a+10+25a+15=654
37a=654-25
a=629:37
a=17
b=17x11+10=197
c=25x17+15=440
proba 17+197+440=654
a+b+c=654
b=11a+10
c=25a+15
⇒a+[11a+10]+[25a+15]=654
⇒a+11a+25a=654-10-15
⇒37a=644-15
⇒37a=629
⇒a=629/37
⇒a=17;
⇒b=11×17+10
⇒b=187+10
⇒b=197;
⇒c=25×17+15
⇒c=425+15
⇒c=440;
sau c=654-[17+197]
⇒c=654-214
⇒c=440;
Verificare 17+197+440=654;
b=11a+10
c=25a+15
⇒a+[11a+10]+[25a+15]=654
⇒a+11a+25a=654-10-15
⇒37a=644-15
⇒37a=629
⇒a=629/37
⇒a=17;
⇒b=11×17+10
⇒b=187+10
⇒b=197;
⇒c=25×17+15
⇒c=425+15
⇒c=440;
sau c=654-[17+197]
⇒c=654-214
⇒c=440;
Verificare 17+197+440=654;