The equation is .
(Original equation)
(Rewrite the equation)
Therefore, the equation can be represented a direct variation.
Direct; .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=30e161921d171230e9116853e48eed46.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=30e161921d171230e9116853e48eed46.png\")
(Original equation) ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=30ccc02ab733995fd21ec0a3a146b09c.png\")
(Rewrite the equation)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=30ccc02ab733995fd21ec0a3a146b09c.png\")
.