marschall
marschall marschall
  • 03-03-2017
  • Mathematics
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Help? Because my teacher doesn't want too

Help Because my teacher doesnt want too class=

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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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