D. if x = y or relationship between x and y can't be established
Feedback According to the given equations:
I. x = 152 – 63
x = 225 – 216
x = 9
II. y = 122 – 112 – 14
y = 144 – 121 – 14
y = 9
After comparison of both equations, the conclusion is x=y or no relation is obtained