kadinmorgan
kadinmorgan kadinmorgan
  • 19-12-2018
  • Mathematics
contestada

Solve using substitution
y= x+4
x-y= -4

Respuesta :

Cathi Cathi
  • 19-12-2018
X-(x+4)=-4

X-x-4=-4
-4=-4

All real numbers
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