Respuesta :

Answer:

M = -1/2


Step-by-step explanation:

2x -4y = 10 (subtract 2x from both sides)

-4y = -2x +10 (divide everthing by -4)

Y= -2/4x -10/4 (reduce fractions)

Y = -1/2x -5/2

M = -1/2

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