Question 777794
4|7x+9|-3 < 17


4|7x+9| < 17+3


4|7x+9| < 20


|7x+9| < 20/4


|7x+9| < 5


-5 < 7x+9 < 5


-5-9 < 7x < 5-9


-14 < 7x < -4


-14/7 < x < -4/7


-2 < x < -4/7


Final Answer: -2 < x < -4/7