Simplify: 5x−2[3x−4(x−1)]5x - 2[3x - 4(x - 1)]5x−2[3x−4(x−1)].
7x−87x - 87x−8
7x+87x + 87x+8
3x−83x - 83x−8
5x−85x - 85x−8