The expression is .
Since and are like terms, we can combine them.
(Write the expression)
(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=f8cc3d81568b13404605129f56ea61ef.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6b31e3645415ad3617fd687fd1ec94cc.png\")
and ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=01e233ce5cbbbdb2c85e48fc577c2d39.png\")
are like terms, we can combine them.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f4c56d4ff3a66b2031817b0963fad49b.png\")
(Write the expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d022b7dc99916d8f3c66ba41222861e5.png\")
(Combine like terms)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a51cc1a7a97e4e3db57bf49ac8569e93.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=a51cc1a7a97e4e3db57bf49ac8569e93.png\")
.