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Math·Advanced Math·Nonlinear equations in one variable and systems of equations in two variables

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The graphs of the equations in the given system intersect at the point $(x,y)$ in the $xy$-plane. What is a possible value of $y$?
$y-x=47$
$y=x^2-45x$

A

$47$

B

$48$

C

$93$

D

$94$