139197 139197
  • 15-03-2020
  • Mathematics
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which of these systems of equations has a solution of (6,-7)?
A.x-2y=20
2x-y=19
b.x-2y=20
2x+y=19
c.x+2y=20
2x-y=19
d.x+2y=20
2x+y=19

Respuesta :

211247Adi
211247Adi 211247Adi
  • 15-03-2020

Answer:too many words

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