Question

Determinati  perechile   de numere intregi  care  verifica simultan  relatiile : |x-1|=1  si |x-y| < 2

Answer 1

|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