\
\ \
The expression is
. (Absolute value of -13 is 13)
. (Absolute value of 8 is 8)
Rewrite the expression
(Subtract: \ \
Value of the expression is 5.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
\ \
\ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7de2fe90a5aa88db508213e500b924fb.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=86fb0c6710d68a8b343936953aa6b72d.png\")
. (Absolute value of -13 is 13)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e90ff662a5780b02abad10c7a9dd18e3.png\")
. (Absolute value of 8 is 8)![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e90ff662a5780b02abad10c7a9dd18e3.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7cb0a9b56c2008da2485ba584174adc2.png\")
(Subtract:![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7befc80fd0c163e3d95cc2d3aae0e790.png\")
\ \
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
\ \