(1)
The inequality .
Add +1 on each side of inequality.
Divide each side of inequality by 3.
Solution set is .
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=03e0a5219b27f88eb4b42f3bd3730380.png\")
..![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=bc3871fe8ba70930f1989a8a8dab8fad.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=05330289b970a3951af56a99ef09233c.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ebe537ca2d05a11b86d63c2fe140eb63.png\")
.