The equation is .
(Original equation)
(Add to each side)
(Apply additive inverse property: )
Therefore, the equation can be represents a direct variation.
Direct; .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=55c2be526c717ec8fc59b9d6fdfcbef5.png\")
. ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=55c2be526c717ec8fc59b9d6fdfcbef5.png\")
(Original equation)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1274b1d05f87050ed53bad657c4302c7.png\")
(Add ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b1f02a70f7489dd3b8742e9e1c94d6d0.png\")
to each side) ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=47ebda999319208522fa6fddb91264ec.png\")
(Apply additive inverse property: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7757f790e29b8ca1055ea972ef10b653.png\")
) ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2a9e84223c152f4dcc016a41bbc8523e.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2a9e84223c152f4dcc016a41bbc8523e.png\")
.