\"\"

\

The replacement set is \"\".

\

Replace k in the equation with each value in the replacement set and check

\

whether the equation is true or not.

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

k

\
\

         \"\"

\
\

       True or False

\
\

11

\
\

 \"\"

\
\

False

\
\

12

\
\

 \"\"

\
\

False

\
\

13

\
\

 \"\"

\
\

False

\
\

14

\
\

 \"\"

\
\

False

\
\

15

\
\

 \"\"

\
\

True

\
\

 Since k = 15 makes the equation true, the solution of  \"\" is 15.\"\"

\

The solution set is {15}.