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#1 2008-03-13 10:49:40
- Joseph
- Guest
6th grade
Simplify: 1/2 (2a+16b) + 2/3 (12a + 6b)
#2 2008-03-13 10:57:01
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: 6th grade
First you should multiply each term in the brackets by the thing outside them.
eg. 1/2(2a+16b) = a+8b.
Once you've also done that with the other bracket, you can group the a terms and the b terms together and add their coefficients.
So, if you had a+8a, that would be equal to 9a.
Why did the vector cross the road?
It wanted to be normal.
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#3 2008-03-13 10:57:32
- LuisRodg
- Real Member
- Registered: 2007-10-23
- Posts: 322
Re: 6th grade
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#4 2008-03-13 11:00:58
- luca-deltodesco
- Member
- Registered: 2006-05-05
- Posts: 1,470
Re: 6th grade
why did you take the 6 underneath, sure it'd have been easier to just do:
The Beginning Of All Things To End.
The End Of All Things To Come.
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#5 2008-03-13 11:17:39
- LuisRodg
- Real Member
- Registered: 2007-10-23
- Posts: 322
Re: 6th grade
I like to complicate stuff 
To be honest, first thing that came to mind was to get common denominators since for some reason I didnt think the fractions would become whole numbers.
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