Respuesta:
3x + y = 9
x + 2y = 8
-3(x + 2y = 8)
-3x + -6y = -24
-5y = -15
y = 3
x = 2
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Respuesta:
3x + y = 9
x + 2y = 8
3x + y = 9
-3(x + 2y = 8)
3x + y = 9
-3x + -6y = -24
-5y = -15
y = 3
x = 2