Answer:
45x - 63 y + 36 z
Step-by-step explanation:
When I think of the distributive property, I imagine giving the outside term to everyone on the inside (multiplying).
9 (5x - 7y + 4z)
= 9 (5x) + 9 (-7y) + 9 (4z)
= 45x - 63 y + 36 z
Good luck with your math!
