Respuesta :

Just pull everything out bit by bit.
[tex]2x - x = x[/tex]
[tex]3y - ( - y) = 3y + y = 4y[/tex]
[tex] - 4z - ( - z) = - 4z + z = - 3z[/tex]
So the final answer would be
[tex]x + 4y - 3z[/tex]