The expression is .
(Substitute x = 2 and y = 8)
(Add: )
(Divide: )
The value of the expression is 3.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ebb5f0dbc5af0d115e34e6bcff602e5d.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ecfded11295e43311bcb73d7c675dc29.png\")
(Substitute x = 2 and y = 8)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a98eeb5718582ce08bfc5a4e930be740.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=29cb3ebfd0ad50d247efbe8084b7d75a.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9c399b5f43a65398101b05257d773749.png\")
(Divide: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2cf5398a178540881627c1c306adc615.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")