Răspuns :
a+b=730
a:b=6 rest 30 =>a=6b+30
6b+30+b=730
7b=700 =>b=100
a=630
a:b=6 rest 30 =>a=6b+30
6b+30+b=730
7b=700 =>b=100
a=630
a+b=730
b:a=6+r30, b=6a+30
a+6a+30=730
7a=700
a=100
b=630
...................................
b:a=6+r30, b=6a+30
a+6a+30=730
7a=700
a=100
b=630
...................................