snashellbrietos snashellbrietos

29-09-2016
Mathematics

Answered

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

A8
B5
C3
D-8
E-3

Verified Answer :

Hussain514 Hussain514

30-09-2016

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 is right option
hope this helps

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