kathiaflores1215 kathiaflores1215
  • 13-01-2020
  • Mathematics
contestada

3x + y = -21
x+y=-5
solving systems of equations by substitution

Respuesta :

fatimadavoudian7
fatimadavoudian7 fatimadavoudian7
  • 13-01-2020
First : x=-5-y and then put x in the phrase above
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