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=e9922854f0c3301afa3ec63f3113d0c8.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f1a4ec2f1a382ad1bbf7020de1c2cf93.png\")
(Apply rule of different signs)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=72e06d70e0391c313f478542a3d04193.png\")
(Absolute value ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=44d9520c588aced875ec458c52a5a4e0.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f106febc8882d77ac68dd7e23b505815.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8643c589961f96e75cda8e635e8e77bd.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d8ca86ace6d4daf89a1e54d5db9eaec1.png\")
.