marschall
marschall
03-03-2017
Mathematics
contestada
Help? Because my teacher doesn't want too
Respuesta :
Аноним
Аноним
03-03-2017
m<ABC = m<EBD = 36 (vertical angles)
78 - x + 36 + 3x - 10 = 180 (straight angle)
Now solve for x
78 - x + 36 + 3x - 10 = 180
2x + 68 = 180
- 68 -68 (subtract 68 on both sides)
2x = 58
x = 29
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