Solve by using the substitution method.
7x+3y=-37
-5x+y=39

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Someone answer this check out the image!