The expression is .
(Apply rule of different signs)
(Absolute value )
(Subtract: )
The value of expression is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=227d06449d0e5d3162dee9a7a46251ef.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=586b4232c2c18a505f7d07b25881e76f.png\")
(Apply rule of different signs)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=35afa9a3f6159fe2dd3b22ada5010df7.png\")
(Absolute value ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6c6541631c168e3b8d5b871b4a0279d5.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=65a133ad468511c1a33127ef27cc1870.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f484b8bccaa5c4daedf1e0c0893a2d29.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d8b27827352a8f9d9d941422578adedc.png\")
.