Respuesta:
3x + 2y - x + 5y = 2x + 7y
4z + 3x - 2z + 8x - 2y = 2z + 11x - 2y
7x + 8y - 11x + 2y + 2x - 14y = -2x - 4y
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Respuesta:
3x + 2y - x + 5y = 2x + 7y
4z + 3x - 2z + 8x - 2y = 2z + 11x - 2y
7x + 8y - 11x + 2y + 2x - 14y = -2x - 4y