Răspunsuri

2014-09-25T15:09:29+03:00
5+9=14    14+21-13=22 acesta este raspunsul
2 4 2
2014-09-25T15:10:27+03:00
X+13-21=5+9
x+13-21=14
x+13=21+14
x+13=35
x=35-13
x=22
3 4 3