![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The line is 3x + 4y = 12.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=eaf5806448099480066960c33ed9e752.png\")
(Subtract 3x from each side)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=bb4f023954b0f626a8ea812bdf2a2a2b.png\")
(Simplify)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=025d6a274126b74744e783956ce9ca19.png\")
(Divide each side by 4)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f8f86085c7abb5bc3329796f47438bc7.png\")
(Simplify)![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
Compare the equation with y = mx + b, where m is slope and b is y-intercept
\Slope of the line (m) = ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e1c6e8c53ef854ff2541228336ac7935.png\")
.
If two lines are paralle their slopes are same ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7af40b4b9258897af155abc0c59fabf5.png\")
.
The parallel line slope is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4a0bb56d73379eaaa59beb22c426220c.png\")
.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The parallel line slope is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4a0bb56d73379eaaa59beb22c426220c.png\")
.