\
The expression is
.
\
Draw a number line graph.
\
\
.
\
.
\
The expression is
.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a2fa2676af35d2a40c7e4b623a3c0845.png\")
.![\"number](\"/userfiles/47322.gif\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a5cff426588b818466d9177db85c8d35.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e0731119632c9e73ca798a0aab8b8585.png\")
. ![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5440a99013eabfc1bc6d1a6761d45d5e.png\")
.