The replacement set is 

Replace x in  with each value in the replacement set and

check whether the equation is true or not.

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

\ x \	\ \	\ Y = ? \
\ -2 \	\ \	\ y = - 8 \
\ -1 \	\ \	\ y = - 5 \
\ 0 \	\ \	\ y = - 2 \
\ 1 \	\ \	\ y = 1 \
\ 2 \	\ \	\ y = 4 \

\

 Since y = {- 8, - 5, - 2, 1, 4}

The solution set is y = {- 8, - 5, - 2, 1, 4}.