
William S. answered 01/20/14
Tutor
4.4
(10)
Experienced scientist, mathematician and instructor - William
4x - 3(x - 2y) + (1/2)(6x - 8y) =
4x - 3x + 6y + 3x - 4y =
4x + y(6 - 4) = 4x + 2y = 2(2x + y)