The equation is .
Apply subtraction property of equality: Subtract 11 from each side.
(Apply additive inverse property: )
(Subtract: )
The value of .
![\"\"](\"/userfiles/image/Library/subtraction_property_of_equality.gif\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=892a86b80090910600db4b736d7e5276.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d6cdadbc38e31db70e4c046c12acec7f.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9e80c132718a6cbb8f47f20c1c82971e.png\")
(Apply additive inverse property: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=82b07f84ee0725b7bec213692bdc4513.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b4cfec6c28c5525c8a40edadd6bd005f.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=077ade0de32f43ffa8f0ef3af9dea78a.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b4cfec6c28c5525c8a40edadd6bd005f.png\")
.