3. a) 11-2(3x-4)>1
11-6x+8>1
19-6x>1
-6x>1-19
-6x>-18 /inmultim cu -1 => 6x<18 => x<3
b) 2(2x+1)+13≤3(x-1)+22
4x+2+13≤3x-3+22
4x+15≤3x+19
4x-3x≤19-15 => x≤4