The expression is .
(Substitute in original expression)
(Multiply: )
The value of the expression is 60.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b889dbfa2e7658e658a8b4edeccd4436.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=aabcdc584221f3739568860cf9358a09.png\")
(Substitute ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4908458b856f363bcb39334bdb1d70c5.png\")
in original expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=82e311bf6c54a8eef6d9967220d6749a.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=48beacd206cd5cae33b41bca657381b0.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")