Can someone help pls !

asked Aug 16, 2021 25.1k views

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Answer:

(B).
A_(y) =
$\left[\begin{array}{cc}12&7\\17&-51\end{array}\right]$

Explanation:

12x - 13y = 7

17x - 22y = - 51

A =
$\left[\begin{array}{cc}12&-13\\17&-22\end{array}\right]$

A_(x) =
$\left[\begin{array}{cc}7&-13\\-51&-22\end{array}\right]$

A_(y) =
$\left[\begin{array}{cc}12&7\\17&-51\end{array}\right]$

Jribeiro answered Aug 21, 2021

6.9k points

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