If , then
(Given)
(Apply multiplicative property: if ,then )
(Use substitution property)
The multiplicative property justifies the statement.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c0016b1c05d11d8d57b7064ac407f71c.png\")
, then ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=841057b0a80409fa6457b4c88073d8dc.png\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c0016b1c05d11d8d57b7064ac407f71c.png\")
(Given)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e7d0e0ed1d75d73f0224784c97110426.png\")
(Apply multiplicative property: if ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c3496c16ebb8ec2293d0eb6f139a62e7.png\")
,then ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1a73604ce7964f4f9992f4dbeacf863a.png\")
) (Use substitution property)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")