Zappp123
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| Joined: 17 Feb 2012 |
| Total Posts: 75 |
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| 27 Oct 2016 08:37 PM |
how smart are ppl on ot 5x + 5 + 9x = 7x - 10 find x
#Tix oh wait |
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lunuray
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| Joined: 02 Jun 2013 |
| Total Posts: 1904 |
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| 27 Oct 2016 08:38 PM |
| trick question. there's more than one x. |
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Zappp123
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| Joined: 17 Feb 2012 |
| Total Posts: 75 |
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| 27 Oct 2016 08:39 PM |
-7/15
had to do it in my head so might not be accurate |
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Zappp123
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| Joined: 17 Feb 2012 |
| Total Posts: 75 |
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| 27 Oct 2016 11:12 PM |
wrong round to the nearest 10th by the way close but no negative
#Tix oh wait |
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Aetricity
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| Joined: 29 Mar 2012 |
| Total Posts: 51079 |
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| 27 Oct 2016 11:19 PM |
5x + 5 + 9x = 7x - 10 -5x -5x 5 + 9x = 2x - 10 5 = -7x - 10 +10 +10 15 = -7x /-7 /-7 x = -2 1/7
+10k | https://forum.roblox.com/Forum/ShowPost.aspx?PostID=193614179 |
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Kipec
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| Joined: 25 Nov 2010 |
| Total Posts: 10272 |
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Kipec
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| Joined: 25 Nov 2010 |
| Total Posts: 10272 |
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| 27 Oct 2016 11:22 PM |
showing my work 5x + 5 + 9x = 7x + 10 14x + 5 = 7x + 10 -5 -5 14x = 7x + 5 -7x -7x
7x = 5 /7 /7
x = 5/7 |
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Aetricity
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| Joined: 29 Mar 2012 |
| Total Posts: 51079 |
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| 27 Oct 2016 11:23 PM |
oh i'm stupid i forgot to add 5x and 9x
aaaaaaaaaaaaaaaaaaaaaaaaaaaaa
+10k | https://forum.roblox.com/Forum/ShowPost.aspx?PostID=193614179 |
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