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September 18, 2014

September 18, 2014

Posted by **nikki** on Thursday, September 30, 2010 at 12:34am.

- Geometry -
**Kyle Buchanan**, Thursday, September 30, 2010 at 2:29amx + (2x - 12) = 180

3x - 12 = 180

3x = 180

+ 12

____

3x =192

192/3= x

- Geometry -
**Reiny**, Thursday, September 30, 2010 at 8:57amlet the angle be x

then its supplement is 180-x

x = 2(180-x) - 12

x = 360 - 2x - 12

3x = 348

x = 116

check:

if the angle is 116

its supplement is 64

twice the supplement is 128

12 less than twice the supplement = 128-12 = 116

YEAH!

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