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 December 21st, 2013, 03:29 PM #1 Newbie   Joined: Dec 2013 Posts: 5 Thanks: 0 Polynomial, order of operartions with Ratio symbol Hi all, here is part of a puzzle found via an android app that is escaping me Given the following: X-9*5:2-4+12:3*7 .... how would one go about simplifying this considering the order of operations and replacing the RATIO symbol by a division ... This is SIDE A of equation , where A=B and B has all terms reversed, attempting to solve for X But just interested in evaluating A for now, have tried various , what I considered obvious combos without success, any ideas?
December 21st, 2013, 04:13 PM   #2
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Re: Polynomial , order of operartions with Ratio symbol

Quote:
 Originally Posted by mathmatt X-9*5:2-4+12:3*7 .... how would one go about simplifying this considering the order of operations and replacing the RATIO symbol by a division
Do you mean:
X - 9 * 5 / 2 - 4 + 12 / 3 * 7 ?

 December 21st, 2013, 04:28 PM #3 Newbie   Joined: Dec 2013 Posts: 5 Thanks: 0 Re: Polynomial , order of operartions with Ratio symbol Well , thanks for replying, this is how I initially evaluated this but now I'm not sure as the puzzle didn't solve using how you wrote it ... GIVEN : X-9*5:2-4+12:3*7 , I would have thought as you said : X - 9 * 5 / 2 - 4 + 12 / 3 * 7 or is it A:B:C where A/(B/C) ???
December 21st, 2013, 05:03 PM   #4
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Re: Polynomial , order of operartions with Ratio symbol

Quote:
 Originally Posted by mathmatt Well , thanks for replying, this is how I initially evaluated this but now I'm not sure as the puzzle didn't solve using how you wrote it ... GIVEN : X-9*5:2-4+12:3*7 , I would have thought as you said : X - 9 * 5 / 2 - 4 + 12 / 3 * 7 or is it A:B:C where A/(B/C) ???
Ahhh...I see...then it's :
(x - 9*5) / (2 - 4 + 12) / (3*7)
= (x - 45) / 10 / 21
= (x - 45) * (21/10)
= (21x - 945) / 10
Complete insanity if you ask me

Are you sure that C is not 3+7 instead of 3*7?
Then you'd get something more sensible:
(x - 9*5) / (2 - 4 + 12) / (3 + 7)
= (x - 45) / 10 / 10
= (x - 45) / 1
= x - 45
How does that grab you

 December 21st, 2013, 05:23 PM #5 Newbie   Joined: Dec 2013 Posts: 5 Thanks: 0 Re: Polynomial , order of operartions with Ratio symbol Unfortunately it is 3*7 The puzzle shows as follows: 7*3:12-4+2:5*-9+X=X-9*5:2-4+12:3*7 Drawn in a circular fashion on android app graphic.
 December 21st, 2013, 06:26 PM #6 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,597 Thanks: 1038 Re: Polynomial , order of operartions with Ratio symbol Tried google.... http://www.geteasysolution.com/x-9*5/2-4+12/3+7=x hmmm......
 December 21st, 2013, 06:48 PM #7 Newbie   Joined: Dec 2013 Posts: 5 Thanks: 0 Re: Polynomial , order of operartions with Ratio symbol Hi Denis, ... I think you misunderstood my original question,, ... see original post, .. The equation I gave was only one side of the equation... The Puzzle is Fx=Fy, where Fx is what I gave, Fy which I did not show is all the terms in Fx reversed. So my question hinges on how to rewrite Fx , eliminating the ( symbol 7*3:12-4+2:5*-9+X=X-9*5:2-4+12:3*7
 December 21st, 2013, 07:11 PM #8 Newbie   Joined: Dec 2013 Posts: 5 Thanks: 0 Re: Polynomial , order of operartions with Ratio symbol Denis , I have an image file which should explain what I am trying to solve, ... how do I get it to you ???
 July 30th, 2017, 08:38 AM #9 Newbie   Joined: Jul 2017 From: egypt Posts: 1 Thanks: 0 It would be 13, you should start and finish at ''x'' and its about results, order of operations is not important and the result is bigger than 10 and less than 15.
July 31st, 2017, 05:12 PM   #10
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Quote:
 Originally Posted by mathmatt Denis , I have an image file which should explain what I am trying to solve, ... how do I get it to you ???
if you were able to use the parenthesis properly it would be helpful.
I can't even able to read the question.

By as far I got it, would it be something like that?

$\displaystyle \frac{\frac{(x\ - \ 9 \ \cdot \ 5)}{(2\ - \ 4 + \ 12)}}{3\ +\ 7}$

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