Răspuns :
a-b=25
a:b=3 rest 5 => a=3b+5
.............................
3b+5-b=25
2b=25-5=20
b=20:2=10
a=3•10+5=35
a:b=3 rest 5 => a=3b+5
.............................
3b+5-b=25
2b=25-5=20
b=20:2=10
a=3•10+5=35