We need more info there is no following in you question
I think that in/ during a way you are there for one purpose. And, that's to defend your country. So.. No matter the outcome. You kinda did ask for that outcome. Nobody forced you to go to war. You trained your army for that day.
Use elimination for number 2( multiply the bottom one by -1 the entire equation then add once you have the equation solve the equation to find x once you find x plug it in the top equation to ding y)(for substitution there should be a equation y= #x+or- # plug the part after the y into the other equation once you find x plug it in to the starter equation and go from there)(hope this helps)
What murder scene are you referring to exactly? I'm assuming the names that you have listed are victims, and if the blood trail does not match theirs, it is likely that the blood belongs to the criminal.
I hope this was helpful!
