The expression is .
(Combine like terms using distributive property: )
(Add: 5 + 12 = 17)
The value of the expression is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=662f714cf55b0534ad16019ee97e73ad.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=21db976d5eb00d2c327fb01492c7cb71.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=05239bc9fed3c740cbd26f56c11f0cf2.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=85bebee7743e7dc0aacc906d8f042263.png\")
(Add: 5 + 12 = 17)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=78800218579254c8cd95f6067541d6f2.png\")
.