Răspuns :
a+b=128
a:b=5r2 a=5b+2
5b+2+b=128
6b=126
b=126:6
b=21
a=5*21+2=105+2=107
proba
107+21=128
a:b=5r2 a=5b+2
5b+2+b=128
6b=126
b=126:6
b=21
a=5*21+2=105+2=107
proba
107+21=128