Respuesta :

Cxlver

Answer:

Step-by-step explanation:

x + y = 12 | -x = -y - 10

x + y = 12 | x = y + 10

y + 10 + y = 12 | x = y + 10

2y = 2 | x = y + 10

y = 1 | x = 1 + 10

(11, 1)

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