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June 23rd, 2014, 07:29 AM  #1 
Newbie Joined: Jun 2014 From: England Posts: 24 Thanks: 2 Math Focus: Trigonometry  Feel stupid about this
Rearrange to make X the subject Y= X/4 Normally I know how to do this but i keep getting X= 4Y note the X has to be positive. Can somebody help 
June 23rd, 2014, 07:56 AM  #2 
Member Joined: Apr 2014 From: norwich Posts: 84 Thanks: 9 
X/4 is the same as X/(4) Try multiplying both sides of the first equation by 4 and see what you get. 
June 23rd, 2014, 08:08 AM  #3 
Newbie Joined: Jun 2014 From: England Posts: 24 Thanks: 2 Math Focus: Trigonometry 
I did but all i get is 4Y = X, the has to be a positive Note: Thanks i found the solution to it, i misread your answer the first time round. Last edited by Buster; June 23rd, 2014 at 08:19 AM. 
June 23rd, 2014, 08:29 AM  #4 
Member Joined: Apr 2014 From: norwich Posts: 84 Thanks: 9 
If you read Try dividing..... you didn't misread it. That's what I wrote first but quickly changed it having realised I'd made a mistake. 
June 24th, 2014, 02:26 AM  #5 
Senior Member Joined: Apr 2014 From: Glasgow Posts: 2,164 Thanks: 736 Math Focus: Physics, mathematical modelling, numerical and computational solutions 
EDIT: Was going to type some advice here but I just read that you got the solution. Nice one Last edited by Benit13; June 24th, 2014 at 02:28 AM. Reason: he got the answer! :) 
June 24th, 2014, 04:23 AM  #6 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,597 Thanks: 1038  
June 26th, 2014, 09:05 AM  #7 
Newbie Joined: Jun 2014 From: England Posts: 24 Thanks: 2 Math Focus: Trigonometry 
Thanks man really appreciate it 

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