\
\ \
The expression is
. (Absolute value of 13 is 13)
. (Absolute value of -2 is 2)
Rewrite the expression
(Add:)
Value of the expression is 15.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
\ \
\ \
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=714d77e664c22021109efd012e2d321c.png\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3f64f59ee578d272ddb99169946534d7.png\")
. (Absolute value of 13 is 13)![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2bd49249de32d6c25c63ba54646e45e6.png\")
. (Absolute value of -2 is 2)![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
![\"\"](\"http://c4anything.com/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2bd49249de32d6c25c63ba54646e45e6.png\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=67a879c3f2c65203a1ae270c0b1e5cd4.png\")
(Add:![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=868364ddc7185c6c5a590f7e7cc9bd79.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
\ \