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 Foo Off-Topic chit chat with no general subject.

 07-08-08, 05:55 PM #1 phantomcow2 la vache fantôme Thread Starter     Join Date: Aug 2004 Location: NH Bikes: Posts: 6,266 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 1 Post(s) What is this question asking?! Solve the equation = 9 for x __________________ C://dos C://dos.run run.dos.run
 07-08-08, 05:56 PM #2 phantomcow2 la vache fantôme Thread Starter     Join Date: Aug 2004 Location: NH Bikes: Posts: 6,266 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 1 Post(s) I'd show what work I have done, but I don't even know what my objective is. I am prompted to enter a value for x in the answer box. __________________ C://dos C://dos.run run.dos.run
 07-08-08, 06:00 PM #3 FightingPanther Sledge Hammer     Join Date: Mar 2008 Location: University of Pittsburgh Bikes: 2008 Lemond - Buenos Aries Posts: 159 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) your answer will be in terms of a,b,c, and d just multiply both sides by cx+d and then just simplify
 07-08-08, 06:01 PM #4 cooker Prefers Cicero     Join Date: Jul 2005 Location: Toronto Bikes: 1984 Trek 520; 1990s Peugeot (Canadian-made) rigid mountain bike; 2007 Bike Friday NWT; misc others Posts: 12,057 Mentioned: 62 Post(s) Tagged: 0 Thread(s) Quoted: 2437 Post(s) edited out my answer - you have to do it yourself. get rid of denominator. Get all terms with x on one side of the equation, them extract the x. Last edited by cooker; 07-08-08 at 06:07 PM.
 07-08-08, 06:03 PM #5 phantomcow2 la vache fantôme Thread Starter     Join Date: Aug 2004 Location: NH Bikes: Posts: 6,266 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 1 Post(s) Alright, but I'm not sure what I am trying to do here. Am I just trying to isolate x? Where does the 9 even play in? __________________ C://dos C://dos.run run.dos.run
 07-08-08, 06:04 PM #6 phantomcow2 la vache fantôme Thread Starter     Join Date: Aug 2004 Location: NH Bikes: Posts: 6,266 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 1 Post(s) And cooker, that is correct. __________________ C://dos C://dos.run run.dos.run
07-08-08, 06:15 PM   #7
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Quote:
 Originally Posted by phantomcow2 Am I just trying to isolate x?
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 07-08-08, 06:32 PM #8 Sledbikes Senior Member     Join Date: Feb 2005 Bikes: Posts: 539 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) the answer is C
 07-08-08, 08:43 PM #9 deraltekluge Senior Member     Join Date: Sep 2006 Bikes: Kona Cinder Cone, Sun EZ-3 AX Posts: 1,195 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) When the problem is stated as "solve ... for x", the desired answer is of the form x = ... and you get there by manipulating the equation using the rules of algebra, such as: you can add, subtract, multiply, or divide as long as you do the same thing on both sides of the equals sign, thus maintaining the equality you can multiply or divide both the numerator and denominator of a fraction by the same thing...that is, multiply the fraction by 1. For you should start by multiplying both sides of the equation by (cx + d)
07-08-08, 09:14 PM   #10
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LOL @ posting your homework in Foo.
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07-08-08, 09:15 PM   #11
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