10b+a+b=10b+b
a=0
Îi dăm valori lui b.
b# 0
b = 1, 2, 3, 4, 5, 6, 7, 8, 9.
b=1
a=0
ba+b=bb
10+1=11
b=2
a=0
ba+b=bb
20+2=22
b=3
a=0
ba+b=bb
30+3=33
b=4
a=0
ba+b=bb
40+4=44
b=5
a=0
ba+b=bb
50+5=55
b=6
a=0
ba+b=bb
60+6=66
b=7
a=0
ba+b=bb
70+7=77
b=8
a=0
ba+b=bb
80+8=88
b=9
a=0
ba+b=bb
90+9=99