Answer:
z=0
Step-by-step explanation:
We have,
x−y−z=0 .....(1)
and
y=x+z ....(2)
Equation (1) can be written as : x-y = z ....(3)
and
Equation () can be written as : y-x=z ....(4)
From (3) and (4) we have:
[tex]x-y=y-x\\\\2x-2y=0\\\\x=y[/tex]
Put x=y in equation (1). So,
z=0
So, the value of z is equal to 0.
