The equations are , .
Observe the figure, Since the graphs are intersecting lines, there is one solution.
The system is exactly one solution.
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, ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=acc259422d5e1ebc71bf0c2f56f74d91.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")