\
The expression is
.
\
(Substitute
)
\
\
(Subtract:
)
\
\
The value of the expression
is 9.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d5c00f568e1612b6bab4c971b2929ca6.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a677142ddba2053956f2453ee04401af.png\")
(Substitute ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a55a5d1c51a89fa4342aee29a59a1bfe.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d74d4ec5771319368d70f0f70ff65471.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d82cd2ce0982c1c38086a82c7cb9c6ce.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")