Question

verify x+(y+z)=(x+y)+2 where x=-2/3 y=3/4 and z=4/5

please explain in step by step? ​

Answer 1

17/60=9/12

i hope my answer is correct

Answer 2

Umm is that Z or is it supposed to be 2
Cause their is a law which states that x+(y+z) is always equals to (x+y)+z