\
The expression is
.
\
(Substitute
y
= 18)
\
= 16
(Subtract:
)
\
The value of the expression is 16.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f7baf926dc2a428a339b435914e6a027.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4448f600278673b9fc8a70301b1efb42.png\")
(Substitute y = 18)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=018e2843b63b9db8155146f19adb69dc.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")