
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
February 23rd, 2014, 08:13 PM  #1 
Newbie Joined: Feb 2014 Posts: 1 Thanks: 0  5+16/3x=5/9 Pulling my hair out over this. Help, please.
College prealgebra. You subtract 5 from both sides. That will leave you with 16/3x=5/95/9. Right? Because you need a denominator that's the same in order to subtract. So you're left with 16/3x=9. Now you need the x alone. So the opposite of multiplication is division. And then I get lost here. I'm sure I did something wrong earlier. I'm only on question 17 of 66 and I've been through four pieces of papers trying to figure this problem out.

February 23rd, 2014, 09:19 PM  #2 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,112 Thanks: 912  Re: 5+16/3x=5/9 Pulling my hair out over this. Help, please.
5+16/3x=5/9 Pulling my hair out over this. Help, please. Relax 16/3x = (16/3)x = 16x / 3 : that's same thing, but clearer 5 + 16x / 3 = 5/9 Multiply through by 9: 45 + 48x = 5 ; still with me? Subtract 45 from each side: 48x = 40 Divide each side by 48: x = 40/48 Simplify: x = 5/6 Don't give up...like anything else, practice required... 

Tags 
16 or 3x5 or 9, hair, pulling 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Calculus makes me want to pull my hair out ! Please help :)  AzraaBux  Calculus  4  July 19th, 2013 06:59 AM 