 My Math Forum I have many problems (refreshing) MID TERM TOMORROW
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 Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion

 March 20th, 2012, 08:23 PM #1 Newbie   Joined: Feb 2012 Posts: 9 Thanks: 0 I have many problems (refreshing) MID TERM TOMORROW 2(4x +2) = 8 Show 4/12 is equivalent to 1/3 7/35 - 4/5 = Blank/5 Really confused. Denominator should equal when subtracting fractions. How is the listed answer use denominator of 5? 1/4x = 3 (1/4 x 12 = 3 doing math in my head, but how do you show it?) x = 12 right? 3(2x + 3) = 6x - 4 March 20th, 2012, 09:01 PM #2 Senior Member   Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 521 Math Focus: Calculus/ODEs Re: I have many problems (refreshing) MID TERM TOMORROW 1.) Factor a 2 from within the parentheses: Divide through by 4: Subtract 1 from both sides: Divide through by 2: 2.) 3.) We may reduce the first term: so now the expression is: So -3 goes in the blank. 4.) Multiply through by 4: 5.) On the left distribute the 3: Subtract 6x from both sides: This is false, so there is no solution to the equation. The geometric interpretation is trying to find the point of intersection of two separate parallel lines. Tags mid, problems, refreshing, term, tomorrow Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post leo255 Trigonometry 5 October 18th, 2013 11:20 PM Chriiisss Applied Math 0 April 21st, 2013 04:36 PM gladiatorx Algebra 11 January 9th, 2011 11:16 AM forcesofodin Real Analysis 4 August 14th, 2010 05:50 PM hikagi Calculus 2 December 16th, 2007 08:02 PM

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