Question

scrieti toate nr de foma ab in care a=b+5 (ab are bara deasupra) ​

Answer 1

Cred ca asa: a-b=3
a=3 => b=0
a=4 => b=1
a=5 => b=2
a=6 => b=3
a=7 => b=4
a=8 => b=5
a=9 => b=6