ibrahimalbadori13 ibrahimalbadori13
  • 07-02-2020
  • Mathematics
contestada

solve system of equation
x-y=11
2x+y=19

Respuesta :

ntowry
ntowry ntowry
  • 07-02-2020

Answer:

(10, -1)

Step-by-step

the y's cancel

3x = 30

x = 10

10 - y = 11

- y = 1

y = -1

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