hi! could someone help me out with this asap? I’ve been stuck on these questions and it’s 2 am and my heads hurting LOL

(I’ll put my answered question incase the question doesnt make sense without the equations)

Equation 1:
5(2x - 9y = -8) , multiply Equation 1 by 5 to make x terms eliminate.
New equation 1:
10x - 45y = -40

Equation 2:
2(5x + y = -20) , Multiply equation 2 by 2 to make x-terms eliminate.
New Equation 2:
10x + 2y = -40

2) Patricia’s brother, Michael, tells her that the y-terms would be much easier to eliminate than the x-terms, why might this be true?

3) use michael’s method to eliminate the y-terms to solve the system of equations using linear combination.

4) prove algebraically that (5,2) is NOT a solution to the system of equations.

I’d appreciate it so much if you could help me, thank you and have a good day/night :)