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 Post subject: help please
PostPosted: Fri Feb 24, 2012 5:12 pm 
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Joined: Tue Feb 22, 2011 11:06 pm
Posts: 75
1, 11+x=5

2, x+5=3

3, 3+x=-5

4, x+7=2

this homework from school.it be kind anyone able to help.i do not have a answer for this.thankyou.


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 Post subject: Re: help please
PostPosted: Fri Feb 24, 2012 5:17 pm 
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Joined: Tue Oct 04, 2011 8:44 am
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Location: Reading
1. x = -6
2. X = -2
3. X = -8
4. X = -5


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 Post subject: Re: help please
PostPosted: Fri Feb 24, 2012 5:24 pm 
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Joined: Sat Feb 13, 2010 11:02 pm
Posts: 420
senthi wrote:
1, 11+x=5


Use a number line,
11+ something is 5,
how would you get from 11 to 5,
You have to take away 6
hence x=-6 (minus six)


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