Question

simplify
a. (x+y-z)+(y+z-x)+(z+x-y)​

Answer 1

(x+y-z)+(y+z-x)+(z+x-y)​

=> x+y-z +y+z-x +z+x-y

=2x-x +2y-y + 2z-z

=x+y+z

Answer 2

Answer:

x+y+z

Step-by-step explanation:

When you open the brackets,

x+y-z+y+z-x+z+x-y

Then you cut out -x and +x, +y and -y, and -z and +z

In the end you will be left with x+y+z