MrGiggles
MrGiggles MrGiggles
  • 15-06-2016
  • Mathematics
contestada

Find x and y. 6x+7iy=18-21i

a.x = 3, y = -3c.x = -5, y = 6b.x = 8, y = -1d.x = 6, y = 18 


 


Respuesta :

caylus
caylus caylus
  • 15-06-2016
Hello,

6x+7iy=18-21i
==>
6x=18==>x=3
and
7y=-21==>y=-3

Answer A

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