Răspuns :
Notam numerele necunoscute cu a, b, c.
a+b+c=122 (1)
(a+b):c =4 rest 7
a+b=4c+7 (2)
In relatia (1), inlocuim a+b cu 4c+7 si determinam c.
Stim ca b > c cu 18 , adica b=c+18
a+b+c=122 (1)
(a+b):c =4 rest 7
a+b=4c+7 (2)
In relatia (1), inlocuim a+b cu 4c+7 si determinam c.
Stim ca b > c cu 18 , adica b=c+18
a+b+c=122. (a+b):c=4rest7
a+b=4c+7→4c+7+c=122
5c=122-7→5c=115→c=155:5
c=31
b=18+c. b=18+31. b=49
(a+49):31=4rest7
a+49=4*31+7
a+49=131→a=131-49→a=82
proba :
(82+49):31=131:31=4rest7
a+b=4c+7→4c+7+c=122
5c=122-7→5c=115→c=155:5
c=31
b=18+c. b=18+31. b=49
(a+49):31=4rest7
a+49=4*31+7
a+49=131→a=131-49→a=82
proba :
(82+49):31=131:31=4rest7
