ggomez4
ggomez4
10-04-2018
Mathematics
contestada
What is the value of x
Respuesta :
Аноним
Аноним
10-04-2018
Sum of all adjacent angles is 180°.
3x + 12 + x = 180
4x + 12 = 180
4x = 168
x = 42°
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Answer: x = 42°
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