The equation is .
The point is
(Substitute 3.5 for x and 6.8 for y)
(Multiply: )
(Subtract: )
The point is a not solution of .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1718d29f3fb851e78afc8a78ff3598eb.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d0e861ccd1f16656ebf26285191b5fe4.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fea5ae05a8edc33d43e1384dc8beed43.png\")
(Substitute 3.5 for x and 6.8 for y) ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5b397572daa97a4041a65f8616bee282.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e462db50084a67359f4a04100ae6cee8.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b40214295b20beb33d10efd827db1801.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=050f58844b3f5896bbaea380c555e603.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d0e861ccd1f16656ebf26285191b5fe4.png\")
is a not solution of ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1718d29f3fb851e78afc8a78ff3598eb.png\")
.