Răspuns :
a-b=19
a:b=3 rest 5⇒a=3xb+5
3b+5-b=19
2b=19-5
2b=14
b=14:2
b=7
a=3x7+5
a=26
V: 26-7=19
26:7=3 rest 5
a:b=3 rest 5⇒a=3xb+5
3b+5-b=19
2b=19-5
2b=14
b=14:2
b=7
a=3x7+5
a=26
V: 26-7=19
26:7=3 rest 5