Answer:
D. y = x-2(w+z)
Step-by-step explanation:
w = (x-y)/2 -z
Add z to each side
w+z = (x-y)/2 -z +z
w+z = (x-y)/2
Multiply each side by 2
2(w+z) = (x-y)/2 *2
2(w+z) = x-y
Subtract x from each side
2(w+z) -x = x-y-x
2(w+z) -x = -y
Multiply each side by -1
-2(w+z) +x = y
