\
The expression is
.
\
The verbal description is "
A number increased by 4 ".
\
The verbal description is "
A number increased by 4 ".
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a3119277fc26288e2955abddaad4ebe5.png\")
.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")