Guest: you need to distribute.4x - 3 (x-2y) + 1/2 (6x-8y)= 4x -3(x) and -3(-2y) + 1/2(6x) and 1/2(-8y)= 4x -3x +6y + 3x - 4y= (4x-3x+3x) + (6y-4y)= 4x + 2y
you need to distribute.4x - 3 (x-2y) + 1/2 (6x-8y)= 4x -3(x) and -3(-2y) + 1/2(6x) and 1/2(-8y)= 4x -3x +6y + 3x - 4y= (4x-3x+3x) + (6y-4y)= 4x + 2y