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Re: here's some really easy math for you

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whyOmustOitObeOme is not online. whyOmustOitObeOme
Joined: 29 Aug 2009
Total Posts: 15668
09 Dec 2013 08:28 PM
Solve the linear system by substitution, elimination, or graphing.

2x + 5y = 9
y = x + 2
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whyOmustOitObeOme is not online. whyOmustOitObeOme
Joined: 29 Aug 2009
Total Posts: 15668
09 Dec 2013 08:31 PM
okay let me do step 1

2x + 5y = 9
-x + y = 2
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GrapeSmtih is not online. GrapeSmtih
Joined: 22 Sep 2013
Total Posts: 2092
09 Dec 2013 08:32 PM
I smell Wikipedia...
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Flexably is not online. Flexably
Joined: 04 May 2012
Total Posts: 15503
09 Dec 2013 08:33 PM
How are we supposed to post a graph lol
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whyOmustOitObeOme is not online. whyOmustOitObeOme
Joined: 29 Aug 2009
Total Posts: 15668
09 Dec 2013 08:33 PM
no you smell fish

step 2

2x + 5y = 9
-2x + 2y = 4
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Axel810 is not online. Axel810
Joined: 31 May 2010
Total Posts: 3522
09 Dec 2013 08:34 PM
Oh man, this is one hard question.
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whyOmustOitObeOme is not online. whyOmustOitObeOme
Joined: 29 Aug 2009
Total Posts: 15668
09 Dec 2013 08:34 PM
@Flex

The answer isn't in a graph, but in something like (x, y)
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GrapeSmtih is not online. GrapeSmtih
Joined: 22 Sep 2013
Total Posts: 2092
09 Dec 2013 08:35 PM
Wow, Wikipedia is great isn't it?
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PhantomOfTheInternet is not online. PhantomOfTheInternet
Joined: 11 Aug 2013
Total Posts: 3421
09 Dec 2013 08:35 PM
2x+5y=9
-x+y=2

2x+5y=9
-2x+2y=4

7y=13

y=13/7

-x+13/7=14/7

-x=1/7

x=-1/7

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whyOmustOitObeOme is not online. whyOmustOitObeOme
Joined: 29 Aug 2009
Total Posts: 15668
09 Dec 2013 08:36 PM
@Phan

correct!
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GrapeSmtih is not online. GrapeSmtih
Joined: 22 Sep 2013
Total Posts: 2092
09 Dec 2013 08:36 PM
You do know most people are just going to google or yahoo this? By yahoo, I mean go to yahoo questions.
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Paradisco is not online. Paradisco
Joined: 17 Aug 2010
Total Posts: 1231
09 Dec 2013 08:37 PM
ok why does everyone like elimination

substitution all the way my homies
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Axel810 is not online. Axel810
Joined: 31 May 2010
Total Posts: 3522
09 Dec 2013 08:37 PM
@why Graphing can be used to find the answer. Which is basically where both graphs intercept one another
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PhantomOfTheInternet is not online. PhantomOfTheInternet
Joined: 11 Aug 2013
Total Posts: 3421
09 Dec 2013 08:37 PM
Enjoy your homework points that RT contirbuted to
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Paradisco is not online. Paradisco
Joined: 17 Aug 2010
Total Posts: 1231
09 Dec 2013 08:38 PM
I was hoping they would be parallel

to mess with forumers
or same line
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whyOmustOitObeOme is not online. whyOmustOitObeOme
Joined: 29 Aug 2009
Total Posts: 15668
09 Dec 2013 08:42 PM
@Axel

Yeah, but who would want to waste their time trying to find a graph format on the web?
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PhantomOfTheInternet is not online. PhantomOfTheInternet
Joined: 11 Aug 2013
Total Posts: 3421
09 Dec 2013 08:43 PM
It's too easy just to get a graphing calculator out for
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QatSim is not online. QatSim
Joined: 24 Dec 2012
Total Posts: 5009
09 Dec 2013 08:44 PM
2x + 5y = 9
-2x -2x

5y = -2x + 9
/5 /5

y = -2/5x + 1&4/5
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QatSim is not online. QatSim
Joined: 24 Dec 2012
Total Posts: 5009
09 Dec 2013 08:45 PM
oh wait the other thing


I'm in algebra 1, pity me
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