The expression is
(Replace h and g with 10 and 6)
(Subtract: )
(Add: )
The value of the expression is 16.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c4fa2242b7cf48e1e35d91fb921dea3d.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fb02f3adae9c2b962098c625d5b1c1f6.png\")
(Replace h and g with 10 and 6)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=207c006a22506e31970a26377b58b542.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f376e3ec26dc0940e4047c45c751480b.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cde633734bc714ba49725a8260950284.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5d9027d75f6c1b47784a367ad71eaef3.png\")
) ![\"\"](\"/userfiles/image/steps_images/solution.JPG\")