Which equation can be used to represent "three minus the difference of a number and one equals one-half of the difference of three times the same number and four”? (1 – n) – 3 = (4 – 3n) 3 – (1 – n) = (4 – 3n) (n – 1) – 3 = (3n – 4) 3 – (n – 1) = (3n – 4)