Help - Algebra, my ...
 

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[Closed] Help - Algebra, my brain has died

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Daughter has maths homework, here's an example

a(x+b) = c

When asked for x I can quite easily work out that x = c/a - b

However we are also being asked for x = the rest of the equation above and below a single line

I'm stumped, please help - I've put numbers in, but still can't get it.

Ta


 
Posted : 04/03/2012 8:06 pm
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x=(c-ab)/a

because b = ab/a, and you need to get both terms over common denominator, i.e. a.

🙂 I have not done maths in years, it comes flooding back...


 
Posted : 04/03/2012 8:07 pm
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" above and below a single line"

eh?


 
Posted : 04/03/2012 8:08 pm
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Mowgli understood the question Stoner - thanks Mowgli. Just need to check it to confirm


 
Posted : 04/03/2012 8:10 pm
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common denominator,

Mowgli understood the question Stoner

so do I now 😉


 
Posted : 04/03/2012 8:11 pm
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Yup, all works with numbers - cheers Mowgli


 
Posted : 04/03/2012 8:12 pm
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Show your daughter Kahn Academy.


 
Posted : 04/03/2012 9:25 pm
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How did her date go?

curfew'd? 😉


 
Posted : 04/03/2012 9:28 pm
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Isn't that something to do with Star Trek II, the genesis device and Bill Shatner shouting "Kaaaaaaaaaaahn!" 😀


 
Posted : 04/03/2012 9:29 pm
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Ha, nah. It's an award winning free educational site, mainly maths and physics.

[url= http://www.khanacademy.org/ ]Kahn Academy[/url]


 
Posted : 04/03/2012 9:31 pm
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patch reactivate facebook and message me or go on skype. phone broken. pol


 
Posted : 04/03/2012 9:55 pm
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Show your daughter Kahn Academy.

^^^^ What this man said!

Khan Academy is simply brilliant.


 
Posted : 04/03/2012 11:06 pm