![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
Given that ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ca36a6a086ba0c5cab9102b8e64b7388.png\")
.
Since ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b0e7eeede3250b28ee8ef90479a7105b.png\")
are alternate exterior angles.
Since the line l parallel to m so their alternate exterior angles must be congruent.
\So, ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c3bfcdc41e8c61c26759ae8d24fdf9b8.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d3986b53f49e9ea18fe5b4054dbfa981.png\")
(Definition of congruent angles)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=009e658a5939d2827a7181315b895a0a.png\")
(Subtract 5x from each side) \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b074f576ce075802ac71d66957afbb37.png\")
(Subtract 9 from each side)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c9c354026ada3ab0bb8d31ced5c278a0.png\")
(Divide each side by 9)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The value of x is 9.