The function is .
Substitute the value of in the original function and solve for x. \ \
Add 68 to each side.
Divide each side by 17.
.
The zero of function is 4.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8cacdddd640097903cafee134332defc.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=8cacdddd640097903cafee134332defc.png\")
and solve for x. \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=eaaca57a9feb8d8d87e4175baa82b7ca.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3966a2b235faa08d1808a234b8091985.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6bef0ae567ab3ad2bc68a7999f4518a0.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a8d223c3e886f9886f0f0618494d8a4a.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d2c28154d857432c0a385791f00b9055.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")