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=7d10c339b100eb85f2edf1de6796bfd4.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=93db6698f18fa2b11e3294669d3d9482.png\")
and ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=02061aac8e3fe70f10b52d4e54ddaa3e.png\")
are like terms, we can combine them.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7d10c339b100eb85f2edf1de6796bfd4.png\")
(Write the expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=67fa5a7a40201bac1a7ff3cb54a5b49b.png\")
(Combine like terms)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d7cf950b3a5ea4ff3ae66b94d32ba8d0.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=d7cf950b3a5ea4ff3ae66b94d32ba8d0.png\")
.