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(3/2)x - 3/4 - (4/5)x + 12/5 = (1/2)x - 2 (Prop distributiva)
(3/2 - 4/5 - 1/2)x = 3/4 - 12/5 - 2 (Agrupación de términos semejantes)
(1 - 4/5)x = (15 - 48 - 40) / 20
[(5 - 4)/5]x = -73/20
(1/5)x = (-73/20)
x = (5)(-73/20)
x = -73/4