Question 13006
Your second attempt was spot on in method.However I think you must either have some figures wrong in original problem or signs wrong because:
4x+9 can never = 4x+6 for any value of x.Other tutors will correct me if I have missed something.
OK do not panic.You have made the right move by coming on this site.The areas you mention above where you have difficulty are covered in lessons, accessed through this site, by longjonsilver,dr.rapaljer and ichudov amongst others.
Also look at other answers to get tips.
Stay calm.
Pete