chanThang07
chanThang07 chanThang07
  • 25-09-2017
  • Mathematics
contestada

Need help with number 12. Thanks

Need help with number 12 Thanks class=

Respuesta :

choixongdong
choixongdong choixongdong
  • 25-09-2017
7x - 7 = 3x + 45
4x = 52
x = 13

7x - 7 = 7(13) - 7 = 84

y - 6 = 180 - (84 + 63)
y - 6 = 180 - 147
y - 6 = 33
y = 39

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