Jawabanmu

2014-08-20T21:17:09+07:00
6d - 2d +4 > 3d - 36
= 4d + 4 > 3d - 36
= 4d > 3d - 40
= d > -10
= d > -1
Maka HPnya {x|x>-1}

Semoga membantu, kalau ga ngerti boleh nanya