Respuesta :

pebblesone
3x-16y-z+9
i know this is right!
hope this helps!
AnimeBrainly
8x - 5x = 3x

-8y  - (-8y) = -8y + 8y = 0

0 - (-z) = z

9 - 0 = 9

3x + z + 9 is your answer