Respuesta:
Q = - 21x - 17y
Explicación paso a paso:
Q = x - 3y - 20x + 6y - 2x - 20y
Q = x - 20x - 2x - 3y + 6y - 20y
Q = -21x - 3y + 6y - 20y
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Respuesta:
Q = - 21x - 17y
Explicación paso a paso:
Q = x - 3y - 20x + 6y - 2x - 20y
Q = x - 20x - 2x - 3y + 6y - 20y
Q = -21x - 3y + 6y - 20y
Q = - 21x - 17y