\"\"

\

The replacement set is \"\".

\

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

\

whether the equation is true or not. 

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

x

\ 		\

         \"\"

\ 		\

       True or False

\
\

11

\ 		\

   \"\"

\ 		\

False

\
\

12

\ 		\

 \"\"

\ 		\

True

\
\

13

\ 		\

   \"\"

\ 		\

False

\
\

14

\ 		\

   \"\"

\ 		\

False

\
\

15

\ 		\

   \"\"

\ 		\

False

\
\

 Since x = 12 makes the equation true, the solution of  \"\" is 12.\"\"

\

The solution set is {12}.