Question

If x² - y² = 55, and x - y = 11, then y =

A. 8
B. 5
C. 3
D. -8
E. -3

Answer 1

E.-3 is the corrrect answer

Answer 2

E. -3 thats right

Answer 3

If x-y = 11
then y = x-11

x²-(x-11)² =55
x²-(x²-22x+121) = 55
22x - 121 = 55
22x = 176
x =8

y = x-11
y = 8-11
y = -3. E