The expression is
(Subtract: )
(Multiplicative identity property: )
(Add: )
The value of expression is 13.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3725c57120b031e077f497405eaa237a.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=04c51907d0f413db3d60b9cd99ef723c.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cd61223c9206c3888aa37d0bc0adaea6.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a5b33150ad366101b68b3b307d11cd36.png\")
(Multiplicative identity property: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7b238c776a36ae70920a5e7fba9f9a30.png\")
) ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3b7b5a4029ca0f108e904522060972e9.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b9ba3ab50e6633f8f0d97f851b5e935d.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")