howardebarnes howardebarnes
  • 16-12-2021
  • Mathematics
contestada

x+y=5, y=x+7
solve the equation

Respuesta :

nathantetelbom
nathantetelbom nathantetelbom
  • 16-12-2021

Answer:

x = -1 and y = 6

Step-by-step explanation:

You must isolate the x on both equations and when you got :

x = 5-y and x=7-y

You replace the x : 7-y=5-y You find the y and then put it on one of the two equations and find it

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