The replacement set is z = .
Replace z in the equation with each value in the replacement set and check
\whether the equation is true or not.
\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\
z \ | \
| \
True or False \ |
\
10 \ | \
| \
False \ |
\
12 \ | \
| \
True \ |
\
14 \ | \
| \
False \ |
\
16 \ | \
| \
False \ |
\
18 \ | \
| \
False \ |
Since z = 12 makes the equation true, the solution of is 12.
The solution set is .