Question

Evaluate x - (y - z) and (x- y) - z for y = 3, x = 5, z = 4. Is there any associative property of subtraction

Answer 1

If they are to be equal by the associated property, then the property was not
used correctly.
x - (y - z)
= 5 - (3 - 4)
= 5 - (-1)
= 5 + 1
= 6

(x- y) - z
= (5 - 3) - 4
= 2 - 4
= -2 , clearly they are not equal

If this was supposed to be an example of the distributive property, then
I expected to see this:

x - (y - z)
= x - y + z
= (x - y) + z