Respuesta:
-1
Explicación paso a paso:
x = 3y + 3
2x + y = -1
2(3y+3) + y = -1
6y + 6 + y = -1
7y = -7
y = -1 x = 0
x + y = 0 + (-1)
x + y = -1
RPTA: -1
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Respuesta:
-1
Explicación paso a paso:
x = 3y + 3
2x + y = -1
2(3y+3) + y = -1
6y + 6 + y = -1
7y = -7
y = -1 x = 0
x + y = 0 + (-1)
x + y = -1
RPTA: -1