Last ! if anyone could that would be great you !

If a ordered pair is a solution to the Equation, then it must satisfy the Equation

Let us check the Ordered pairs (4 , 9) and (3 , 2)

Given Equation : 7x - y = 19

Checking whether ordered pair (4 , 9) satisfies :

⇒ 7(4) - 9 = 19

⇒ 28 - 9 = 19

⇒ 28 = 28

⇒ Ordered pair ( 4 , 9) satisfies the Equation

Checking whether (3 , 2) satisfies the Equation :

⇒ 7(3) - 2 = 19

⇒ 21 - 2 = 19

⇒ 19 = 19

⇒ Ordered pair (3 , 2) satisfies the Equation

So, (4 ,9) and (3 ,2) are the Ordered pairs which are solutions to the given Equation.

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's