The exponential equation is .
Rewrite the equation as : .
Consider .
Apply one-to-one property : .
.
The solution of .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c0f0b4e8183b9dcd688acad3fbd8e94a.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=49ad9c24406c5a5fdc599f12b3712381.png\")
..![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8160492f74b7fd75334f1b3ea1fa6140.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8a44f9de4a4e518c7cdd15ef1b2e9299.png\")
.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
.