Răspuns :
Pai e:
a-b=7
a=7+b
a+b=117
7+b+b=117
2b=117-7
b=110:2
a=7+55
=62
Cum a facut Mikelina
a-b=7
a=7+b
a+b=117
7+b+b=117
2b=117-7
b=110:2
a=7+55
=62
Cum a facut Mikelina