It would be X=-5, because you add 12x to both sides and you get -7x-1=34, then you add one to both sides and you get -7x=35, after that you divide -7 and 35 and that equals -5, so then you get x=-5
Answer: 2 and a half slices
Step-by-step explanation: 5/2 is 2.5
He has been alive for 1825 days