My Math Forum Rearrange for "a" which appears twice

 Algebra Pre-Algebra and Basic Algebra Math Forum

 September 15th, 2009, 12:49 PM #1 Newbie   Joined: Sep 2009 Posts: 3 Thanks: 0 Rearrange for "a" which appears twice I need to rearrange this eq, for "a" however i am confused as it appears twice but understand it can be done. X= [(a-b)/c-(a-?)] * [d/e] here is the actual equation if needed W/R=[(?fR- ?iR)/(?iW-(?fR- ?) ] * [CiR/CiW] Thanks
 September 15th, 2009, 03:38 PM #2 Senior Member   Joined: Jun 2009 Posts: 150 Thanks: 0 Re: Rearrange for "a" which appears twice Do you know the method "cross-multiply"?
 September 15th, 2009, 03:40 PM #3 Newbie   Joined: Sep 2009 Posts: 3 Thanks: 0 Re: Rearrange for "a" which appears twice No its been a long time since i have had to do any thing like this...anychance of you showing me the worked eq.?
 September 16th, 2009, 02:13 PM #4 Senior Member   Joined: Jun 2009 Posts: 150 Thanks: 0 Re: Rearrange for "a" which appears twice We're not supposed to do it for you, we're supposed to help you figure out how to do it. "Cross multiply" starts with an equation like $\frac{A}{B}= \frac{C}{D}$ and converts that to one without fractions: $A D= C B$ Will that help in your problem?

 Tags appears, rearrange

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post Albert.Teng Algebra 22 July 8th, 2013 11:31 AM SedaKhold Calculus 0 February 13th, 2012 11:45 AM The Chaz Calculus 1 August 5th, 2011 09:03 PM katie0127 Advanced Statistics 0 December 3rd, 2008 01:54 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top