Y = 6 / x + 2, x, y ∈ Z, what is the number of elements in the set with all y values? Z stands for integer, please write the analysis process and solution

Y = 6 / x + 2, x, y ∈ Z, what is the number of elements in the set with all y values? Z stands for integer, please write the analysis process and solution

The divisor of y = 6 / x + 26 is + - 1 + - 2 + - 3 + - 6
6=y*(x+2)=-1*-6=1*6=-2*-3=2*3=3*2=-3*-2=6*1=-6*-1
So the value of Y is - 1 1 - 2 2 - 3 3 - 6
There are 8 elements in the collection
I hope the explanation is clear ~