guthmilermichele guthmilermichele
  • 27-02-2021
  • Mathematics
contestada

x = 7 - y
x = -2y + 12

Respuesta :

Yang100
Yang100 Yang100
  • 27-02-2021

Answer:

x=2, y=5. (2, 5).

Step-by-step explanation:

x=7-y

x=-2y+12

----------------

7-y=-2y+12

7-y-(-2y)=12

7-y+2y=12

7+y=12

y=12-7

y=5

x=7-5=2

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