\
The expression is .
§ Start at zero.
§ Move 3 units to the right.
§ From there, move 7 units to the left. \ \
Rewrite the expression,
(Add: )
The solution is, .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9eb8b1ec880f98dacc4384f265913281.png\")
. ![\"\"](\"/userfiles/image/Library/Algebra1/numberline_pa89_p25.gif\")
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5898c5c62a4a22ef91ae4ca1f25fb08c.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2d1b1437c4732e0da82cd607088fb12b.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=96c3ee02f82c668fabb83b700161d51a.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=76e92fb6e9a58c730f1bd5261079a078.png\")
.