The expression is .
§ Start at zero.
§ Move 15 units to the left.
§ From there, move 6 units to the right. \ \
Rewrite the expression,
(Add: )
The solution is, .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b736ab8db9f316d3bc248a704575ad6b.png\")
. ![\"\"](\"/userfiles/image/Library/Algebra1/numberline_pa89_p27.gif\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ded88c247862bcfee5e2cdce0489dbc0.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6eccf6b78ca70d6937239da64f38c73c.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6a822b8f91c5c65847e9eefd4dda2249.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cb935b919c47b547ad3434666b8fb386.png\")
.