Answer:
x y
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