$\"\"$

The replacement set is $\"\"$

Replace d in $\"\"$ with each value in the replacement set and check

whether the equation is true or not. \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\
d
\ \
$\"\"$
\ \
True or False
\
\
4
\ \
$\"\"$
\ \
False
\
\
17
\ \
$\"\"$
\ \
True
\
\
23
\ \
$\"\"$
\ \
False
\
\
30
\ \
$\"\"$
\ \
False
\
\
45
\ \
$\"\"$
\ \
False
\
\

Since d = 17 makes the equation true, the solution of $\"\"$ is 17. $\"\"$

The solution set is $\"\"$ .

\ d \	\ $\"\"$ \	\ True or False \
\ 4 \	\ $\"\"$ \	\ False \
\ 17 \	\ $\"\"$ \	\ True \
\ 23 \	\ $\"\"$ \	\ False \
\ 30 \	\ $\"\"$ \	\ False \
\ 45 \	\ $\"\"$ \	\ False \