Răspuns :
a+b=160.
a:b=3
------------
a,b=?
b |_|
a |_|_|_|
4b=160
b=160:4
b=40
a=40x3
a=120
V:120+40=160.
3
a=120
a:b=3
------------
a,b=?
b |_|
a |_|_|_|
4b=160
b=160:4
b=40
a=40x3
a=120
V:120+40=160.
3
a=120