Answer :
[tex]12x-3x+11>4x-(17-9x)\\\\9x+11>4x-17+9x\ \ \ \ \ \ \ |combine\ like\ terms\\\\9x-9x-4x>-17-11\\\\-4x>-28\ \ \ \ \ |:-4\\\\x<7\\\\x\in(-\infty,7)[/tex]
[tex] 12x - 3x +11 > 4x - (17-9x)\\
9x+11>4x-17+9x\\
4x<28\\x<7[/tex]