jayyy13
jayyy13 jayyy13
  • 10-09-2017
  • Mathematics
contestada

I have no clue how to do this

I have no clue how to do this class=

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 10-09-2017

(7x-9) + (2x) = 90

9x-9 =90

9x=99

x = 99/9

x =11

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