The function is .
Substitute the value of in the original function and solve for x. \ \
Add 7 to each side.
Divide each side by 5.
.
The zero of function is 1.4.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=390666859f14f35e3b5d54653a92b5ae.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=390666859f14f35e3b5d54653a92b5ae.png\")
and solve for x. \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1ff1ef156d95d47908bc5205ca9e5329.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1f2e1d9f86de1dbc107a9c485f1d57c8.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3998bc015e5b500d99feaf7509371560.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c4315e84e8f7ca543af45653ff92cd78.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=42df349e94958b7eb6d852cfc760099c.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")