ernieeej
ernieeej ernieeej
  • 11-06-2018
  • Mathematics
contestada

two angles with measurements (5x+7) and (15x-7) are supplementary. what’s the value of x

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datguiser
datguiser datguiser
  • 11-06-2018
They add up to 180 degrees.

5x+7+15x-7=180

20x=180

x=9
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