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Re: RAAAAAAAAAAAAAAAAAHHHHHH!!!! - math

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technoninja1997 is online. technoninja1997
Joined: 27 Aug 2010
Total Posts: 14362
14 Oct 2011 04:54 PM
I've been on this one for too long

5z = -3(z+7)

solve for z
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technoninja1997 is online. technoninja1997
Joined: 27 Aug 2010
Total Posts: 14362
14 Oct 2011 04:57 PM
it's impossible :0
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NintendoGuy1247 is not online. NintendoGuy1247
Joined: 27 Nov 2008
Total Posts: 14828
14 Oct 2011 04:58 PM
5z = -3(z+7)

lol you cant do that because the variable has to be on one side not both
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technoninja1997 is online. technoninja1997
Joined: 27 Aug 2010
Total Posts: 14362
14 Oct 2011 04:59 PM
z being the variable


you move it over to the other side..
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Jammintoad is not online. Jammintoad
Joined: 08 Feb 2009
Total Posts: 10239
14 Oct 2011 04:59 PM
z = -3

Suuuuur
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NintendoGuy1247 is not online. NintendoGuy1247
Joined: 27 Nov 2008
Total Posts: 14828
14 Oct 2011 05:00 PM
5z = -3(z+7)
distrubute = -3z + -21 = 5z

combine like terms = 2z + -21
2z + -21


i got lazy here
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NintendoGuy1247 is not online. NintendoGuy1247
Joined: 27 Nov 2008
Total Posts: 14828
14 Oct 2011 05:00 PM
oh wait oops i wasnt paying attention trololoolol dont listen to what i just said at all on this forum
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Patrick733 is not online. Patrick733
Joined: 01 Oct 2008
Total Posts: 11115
14 Oct 2011 05:00 PM
5z = -3(z+7)
5z = -3z + -21
-3z -3z
2z = -21


Dats all I gawt
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polfy99 is not online. polfy99
Joined: 06 Nov 2009
Total Posts: 60270
14 Oct 2011 05:01 PM
5z = -2z + 7

simple
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smartjake999 is not online. smartjake999
Joined: 11 Feb 2011
Total Posts: 8059
14 Oct 2011 05:01 PM
5z = -3(z+7)
distribute.
5z=-3z-21
......+3z to cancel.
8z=-21.
Z= -21 divided by 8 (-2.625)

The answer is -2.625
I WIN!
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technoninja1997 is online. technoninja1997
Joined: 27 Aug 2010
Total Posts: 14362
14 Oct 2011 05:02 PM
I got the same thing Patrick


I've been doing every possible way for over an hour, is the answer undefined maybe?
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technoninja1997 is online. technoninja1997
Joined: 27 Aug 2010
Total Posts: 14362
14 Oct 2011 05:04 PM
I did the same thing as Smart, and got that answer already



I didn't care to try out -2.625 when I got it because I doubted it would have that many decimal numbers



*sigh*


well a half hour of my life was saved, after an hour was wasted.
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polfy99 is not online. polfy99
Joined: 06 Nov 2009
Total Posts: 60270
14 Oct 2011 05:06 PM
wait its - 2z - 7
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kevin56789 is not online. kevin56789
Joined: 10 Jun 2008
Total Posts: 24220
14 Oct 2011 05:07 PM
ask teacher

that is wut i do when i have a question
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NintendoGuy1247 is not online. NintendoGuy1247
Joined: 27 Nov 2008
Total Posts: 14828
14 Oct 2011 05:08 PM
omg patrick you just copied exactly what i put -______-


kind of
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wwemaniac99 is not online. wwemaniac99
Joined: 10 Mar 2010
Total Posts: 41496
14 Oct 2011 05:08 PM
5z = -3(z+7)

5z = -3z+-21
+3z--+3z+--21

8z = 21

z = 2.6

#LMaD FTW!
[[.i r kewl shufflar.]] -wwemaniac99
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MoneyOverALL is not online. MoneyOverALL
Joined: 06 Oct 2011
Total Posts: 273
14 Oct 2011 05:10 PM
z=-27?

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DarkGenex is not online. DarkGenex
Joined: 11 Feb 2010
Total Posts: 44785
14 Oct 2011 05:10 PM
5z = -3(z + 7)
5z = -3z + 21
2z = 21
z = 10.5

i win :3
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Kirby12349 is not online. Kirby12349
Joined: 01 Aug 2009
Total Posts: 7866
14 Oct 2011 05:11 PM
5z = -3(z+7)
Distributive Property 1st

5z = -3z + -21

Get all "z's" on the same side

8z= -21

Divide...

21/8 = 2.625

remember the ( - )

z = -2.625



Cachao!
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Merely is not online. Merely
Joined: 07 Dec 2010
Total Posts: 17266
14 Oct 2011 05:11 PM
5z = -3(z+7)
5z = -3z - 21
8z = -21
z = -21/8
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wwemaniac99 is not online. wwemaniac99
Joined: 10 Mar 2010
Total Posts: 41496
14 Oct 2011 05:11 PM
lol i messed up combining like terms

#LMaD FTW!
[[.i r kewl shufflar.]] -wwemaniac99
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Kirby12349 is not online. Kirby12349
Joined: 01 Aug 2009
Total Posts: 7866
14 Oct 2011 05:12 PM
Smartjake and I got it :)

Don't listen to people saying that we aren't right, I take 9th grade algebra, so we coo

Cachao!
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wwemaniac99 is not online. wwemaniac99
Joined: 10 Mar 2010
Total Posts: 41496
14 Oct 2011 05:12 PM
wait no i didn't but i forgot to make answer negative
it's -2.6

#LMaD FTW!
[[.i r kewl shufflar.]] -wwemaniac99
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wwemaniac99 is not online. wwemaniac99
Joined: 10 Mar 2010
Total Posts: 41496
14 Oct 2011 05:13 PM
@kirbeh: i got it rait to :3

#LMaD FTW!
[[.i r kewl shufflar.]] -wwemaniac99
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technoninja1997 is online. technoninja1997
Joined: 27 Aug 2010
Total Posts: 14362
14 Oct 2011 06:09 PM
I have a bad habit of over thinking things, it's the worst thing in the world when it comes to math, then again it does help with straight A's
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