zaris4 zaris4
  • 14-07-2018
  • Mathematics
contestada

I’m confused on this one

Im confused on this one class=

Respuesta :

DeanR
DeanR DeanR
  • 14-07-2018

This one is a bit confusing without a diagram anyway. We'll assume the typical labeling where A and B are consecutive angles, so the transverse line AB through the parallels makes A and B supplementary:


A + B = 180 degrees


12x + 46 + 7x + 1 = 180


19x = 180 - 47 = 133


x = 133/19 - 7



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