![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
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The expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5382d1eb57d56fadcdf1c3d019314bc0.png\")
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First draw anumberline diagram.
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- From zero move 12 units right to reach 12.
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- Then move 16 units left to show the difference of 16.
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- Find the final position on the number line.
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![\"Subtracting](\"/userfiles/image/Library/Algebra1/finding%20difference%20of%2012%20%20-%2016%20using%20number%20line%20diagram.gif\")
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The difference of ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5382d1eb57d56fadcdf1c3d019314bc0.png\")
is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=76e92fb6e9a58c730f1bd5261079a078.png\")
.
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![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
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The difference of is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=76e92fb6e9a58c730f1bd5261079a078.png\")
.