Question

2x - 2y + 5z - 2x - y + 3z

x - 3y + 8z

2x - 2y + 8z

3y + 8z

-3y + 8z

Answer 1

-3y+8z

Answer 2

switch like terms next to each other
(2x - 2y + 5z - 2x - y + 3z) change to ( 2x - 2x + y - 2y - 5z + 3z)
next the y thats all alone add one in front of it.. thats just saying that theres only one y
add/subtract like terms
2x - 2x = 0, 1y - 2y = 1y, 5z + 3z = 8z
so you'll have ( 0 + 1y - 8z)
leave the zero and youll
answer : 1y - 8z

Answer 3

It's -2y -y You add

Answer 4

-3y + 8z

Answer 5

Thanks You Guys !