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September 2nd, 2013, 12:01 AM  #1 
Newbie Joined: Sep 2013 Posts: 2 Thanks: 0  Help reversing formula
Hi everyone, Not sure if I posted this in the right section, but let's say I have the following formula: Code: (a * 10d) / (g * r)  (u  0.5d) * (g * 0.002d) 
September 2nd, 2013, 02:30 AM  #2 
Senior Member Joined: Aug 2011 Posts: 334 Thanks: 8  Re: Help reversing formula
It is not an equation since where is no "=" in it. So, one cannot solve it nor "reverse" it until it will be written as an equation must be written. 
September 2nd, 2013, 02:46 AM  #3  
Newbie Joined: Sep 2013 Posts: 2 Thanks: 0  Re: Help reversing formula
Please forgive me Let's say the equation was Quote:
Thanks in advance  
September 2nd, 2013, 04:04 AM  #4 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,597 Thanks: 1038  Re: Help reversing formula
OK; so you have: v = (a * 10d) / (g * r)  (u  0.5d) * (g * 0.002d) same as: v = 10ad / gr  (u  d/2)(dg / 500) do the multiplication: v = 10ad / gr  dgu / 500 + d^2 g / 1000 Only one term contains the "u"; so easy to wrap up...do you want the "satisfaction" of finishing it? 
September 2nd, 2013, 04:08 AM  #5 
Senior Member Joined: Aug 2011 Posts: 334 Thanks: 8  Re: Help reversing formula
is it : value =((a * 10d) / (g * r))  ((u  0.5d) * (g * 0.002d)) or value = (a * 10d) / ((g * r)  (u  0.5d) * (g * 0.002d)) ? Supposing that the equation is : value =((a * 10d) / (g * r))  ((u  0.5d) * (g * 0.002d)) (u  0.5d) * (g * 0.002d) = ((a * 10d) / (g * r))  value (u  0.5d) = ? u = ? 

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