Răspunsuri

2014-05-14T20:07:55+03:00
|x-1|=1
|x-y| < 2
|x-1|= x-1
x-1=1
x=1+1
x=2
|x-y|=x-y
x-y=2
2-y=2
-y=2+2
-y=4 |· (-1)
y= -4
1 5 1