The expression is .
Simplify the expression.
(Original expression)
(Associative property of addition: )
(Add: )
.
The solution is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f30b343cad0f1bfa8cb85d275dd00ac0.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f30b343cad0f1bfa8cb85d275dd00ac0.png\")
(Original expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b97e9c60641f886ca8f70d15dcc118f7.png\")
(Associative property of addition: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=63b30614ae855254f4086bd0186079d1.png\")
) ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e21471b7464027232add56f65cd278ac.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0570e5a7ce63f332f4f49ccb07096c76.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c882b322f1100486286964bc0b98f97f.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=05b706b042004349016f4543d3bd76bb.png\")
.