Answer:
x y
![\left[\begin{array}{ccc}16&4\\8&2\\36&9\end{array}\right]](https://img.qammunity.org/2022/formulas/mathematics/high-school/jb7bpmkq7qs627p0xc70da6mi68rdijutl.png)
Explanation:

take the number on the y and substitute it on the equation:
1st one :
⇒
(then multiply 4 on both sides)
⇒ 4 x 4 =
x 4
⇒ 16 = x
2nd one :
⇒ 2 =
( then multiply 4 on both sides)
⇒ 2 x 4 =
x 4
⇒ 8 = x
3rd one :
⇒ 9 =

(then multiply 4 on both sides)
⇒ 9 x 4 =
x 4
⇒ 36 = 4