Răspuns :
a - b = 26
a : b = 4 rest 5
a = 4b + 5
4b + 5 - b = 26
3b = 21
b = 21 : 3
b = 7
a = 26 + 7
a = 33
a : b = 4 rest 5
a = 4b + 5
4b + 5 - b = 26
3b = 21
b = 21 : 3
b = 7
a = 26 + 7
a = 33