The function is .
Substitute the value of in the original function and solve for x. \ \
Subtract 7 from each side.
Multiply each side by negative 1.
.
The zero of function is 7.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4bded4afc812f9020d4857e0c962bcbe.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=79e9ce80858b0bb8a37f6fef74e79f14.png\")
in the original function ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4bded4afc812f9020d4857e0c962bcbe.png\")
and solve for x. \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=33c39e8f410994b356aae106c6f4cfd0.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=155c00e763ea0523cec1e1299a2f85b2.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7055f9919c287b11e4db05eb28be73aa.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6b46023b9ff236d4ec3531e0b990c078.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2a0e01169c96d983d8d8c061343b1ab9.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")