a+b=126........=> a=126-b......b=126-a
a-b=126-28....=>a-b=98.....=>a=b+98.....=>b=a-98
-------------------------------------------------------------------
a=?b=?
a=126-28:2
a=126-14
a=112
b=a-98
b=112-98
b=14 => 126:14=9 segmanti egali
a) |__|__|__|__|__|__|__|__|
b) |__|
-----------------------------------------
8b+b=126 => 9b=126
8b-b=98......=>7b=98
b=98:7 => b=14
verificare
112+14=126
112-14=98
112-14=126-28
98=98
------------------------------------------------------------------------------------------------
a+b=104
b-5=a:2.....=> b=((104-5):3)+5........=> ...a=((104-5):3)*2
---------------------------------------------------------------------------
a=>b=>
a=((104-5):3)*2 a) |___|___|
a=(99:3)*2 b) |___|+5
a=33*2 ----------------------
a=66 3b+5=104
b=66:2+5 3b=104-5
b=33+5 3b=99
b=38 b=99:3+5
b=33+5,,,,,,,=> b=38
a=(38-5)*2
a=33*2,,,,,,,,=> a=66
verificare
66+38=104
38-5=66:2
33=33
