btsarmygirlzs
btsarmygirlzs
07-02-2018
Mathematics
contestada
What Is the Value Of X
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sqdancefan
sqdancefan
09-02-2018
The sum of angles in a triangle is 180°.
.. 100 +3x +(x -4) = 180
.. 4x +96 = 180
.. 4x = 84
.. x = 21
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