3x-8>2 and 8x-12<-2
3x-8+8>2+8 and 8x-12+12<-2+12
3x>10 and 8x<10
3x/3>10/3 and 8x/8<10/8
x>10/3 and x<5/4
This has no solution because x can't be both greater than 10/3 (approximately 3.3333) and less than 5/4 (1.25)
If this was meant to be two different problems, then just separate the two.
Happy Calculating