\
The symbol () represents the word sum.
Thus the verbal expression is “ “
The verbal expression is the sum of 15 and a number r.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
\
\
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=17b1ff61cff401da6259a04b7aa4af47.png\")
) represents the word sum.![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5fdd2835112257147888a1f2e25e1a0c.png\")
“![\"\"](\"/userfiles/image/steps_images/solution.JPG\")