Question 22353
#1. Divide thru by "7" to get 3<x<10
#2. 7x-5>4 or -(7x-5)>4
  Solving the 1st one youget x>9/7
  Solving the 2nd one rewrite as 
  7x-5<-4
     x<1/7
Final solution x<1/7 or x+9/7

#3. x>1

Cheers,
stan H.