Răspunsuri

2014-11-06T17:42:33+02:00
(×:11-4):3-165:3=12:3
(x :11-4):3-55=4
(x :11-4):3=55+4
(x :11-4):3=59
x :11-4=59 *3
x :11-4=177
x :11=177+4
x :11=181
x=181*11
x=1991

Verificare:(1991 :11-4):3-55=(181-4):3-55=177:3-55=59-55=4
2014-11-06T17:46:30+02:00
(x:11-4):3-55=4
(x:11-4):3=59
x:11-4=59x3=177
x:11=181
X=1991