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| 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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| 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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| 14 Oct 2011 04:59 PM |
z being the variable
you move it over to the other side.. |
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| 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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| 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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| 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
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| 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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| 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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| 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
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| 14 Oct 2011 05:07 PM |
ask teacher
that is wut i do when i have a question |
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| 14 Oct 2011 05:08 PM |
omg patrick you just copied exactly what i put -______-
kind of |
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| 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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DarkGenex
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| 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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| 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
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| 14 Oct 2011 05:11 PM |
5z = -3(z+7) 5z = -3z - 21 8z = -21 z = -21/8 |
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| 14 Oct 2011 05:11 PM |
lol i messed up combining like terms
#LMaD FTW! [[.i r kewl shufflar.]] -wwemaniac99 |
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| 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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| 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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| 14 Oct 2011 05:13 PM |
@kirbeh: i got it rait to :3
#LMaD FTW! [[.i r kewl shufflar.]] -wwemaniac99 |
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| 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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