$\"\"$

The replacement set is $\"\"$

Replace c in $\"\"$ with each value in the replacement set

and check Whether the equation is true. \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\
c
\ \
       $\"\"$
\ \
       True or False
\
\
8
\ $\"\"$ \
           False
\
\
16
\ \
$\"\"$
\ \
           False
\
\
18
\ \
$\"\"$
\ \
           True
\
\

Since c = 18 makes the equation true, the solution of $\"\"$ is 18. $\"\"$

The solution set is $\"\"$

\ c \	\ $\"\"$ \	\ True or False \
\ 8 \	$\"\"$	\ False \
\ 16 \	\ $\"\"$ \	\ False \
\ 18 \	\ $\"\"$ \	\ True \