The expression is .
First locate – 4 then move 9 units to left on number line.
The final position is
The value of expression is .
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.![\"nimber](\"/userfiles/image/Library/Algebra1/nimber_line_diagram_-9-4.gif\")
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![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=51b1cffc277a1b63d8e949eeff2d2636.png\")
.