The equations are , .
Observe the figure, Since the graphs are dependent, there is many solution.
The system is many solutions.
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, ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=473243725b4e577b8c6a7b55ef0cfc23.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")