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Math·Algebra·Linear equations in two variables

hard

$x$	$y$
$-2s$	28
$-s$	23
$s$	13

The table shows three values of $x$ and their corresponding values of $y$, where $s$ is a constant. There is a linear relationship between $x$ and $y$. Which of the following equations represents this relationship?

A

$sx+5y=18s$

B

$5x+sy=18s$

C

$5x+sy=18$

D

$sx+5y=18$