berryemily354
berryemily354
07-02-2018
Mathematics
contestada
how do you set this one up
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cdw2014
cdw2014
07-02-2018
7x and (x+20) are supplementary meaning they add to 180. We can set the sum of the two angles equal to 180 and solve for x.
7x + x + 20 = 180
8x + 20 = 180
8x = 160
x = 20
Hope this helps!
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