Question

Time for a fun math question.

Answer 1

Answer:

$-11 = x - y$

Step-by-step explanation:

$121 = {x}^{2} - {y}^{2} \\ \\ 121 = [x - y][x + y] \\ \\ 121 = [x - y][-11] \\ \\ -11 = x - y$

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Answer 2

x^2 -y^2 = 121

( x-y)( x+y) = 121

-11( x-y) = 121

x- y = -11