The expression is .
(Substitute x = 10 and y = 7)
(Multiply: )
(Subtract: )
The value of the expression is 23.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d487e0f47adb470cac03346189441d20.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ac50186bdb01330fbce6540cb56d8852.png\")
(Substitute x = 10 and y = 7)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2b14047f76b7002c621028142fce38e5.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9e226e95a5833f5c4b05ee24af47d549.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=368014ba9ed45963c71e4df6aef7a547.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8e8fb413d187a78b8ae170ddf6e76746.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")