The expression is .
(Write the expression)
(Group like terms)
(Combine like terms)
The simplified expression is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=74baa62bb2336cfdfde1e74e7a6286b7.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=74baa62bb2336cfdfde1e74e7a6286b7.png\")
(Write the expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a89652dba7e260698ebb8855b39bdf2a.png\")
(Group like terms)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=32e065f82a8b4c75a5081a4f66e305d7.png\")
(Combine like terms)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=137f75fe7b184af0d3c8525576f42812.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=137f75fe7b184af0d3c8525576f42812.png\")
.