Respuesta :
You would simply combine like terms
3z+4+5z-9
3z+5z=8z
4-9=-5
Put them together to get a final answer of: 8z-5 OR -5+8x also works :)
3z+4+5z-9
3z+5z=8z
4-9=-5
Put them together to get a final answer of: 8z-5 OR -5+8x also works :)