The expression is .
First locate 6 then move 12 units to left on number line.
The final position is
The value of expression is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=78b50be2683a9995f56cdaa425341d49.png\")
.![\"nimber](\"/userfiles/image/Library/Algebra1/nimber_line_diagram_6-12.gif\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=eafa8b32bb7c8bf7fd9f2eff369bf09e.png\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=eafa8b32bb7c8bf7fd9f2eff369bf09e.png\")
.