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In-s [12.5K]
3 years ago
5

Why when I sum the angles I don't get 180

Mathematics
2 answers:
Irina-Kira [14]3 years ago
6 0
You don't have all the numbers, you don't know what X equals, you need to know what X equals in order to complete the equation
babymother [125]3 years ago
3 0
5x+20+7x-80=180
12x-60=180
x=20
I think that's the answer
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