<prompt> Human: Say my rent is 480 and so is my roommates.i get the bigger room so I have to pay 50 bucks more a month.If i just pay 50 extra in rent, meaning adding 50 dollars more to my rent, i pay 530. my roommate pays 430. However the difference between these 2 equals 100 dollars.However if I pay 510 and my roommate pays 445, then the difference between the 2 would be 50 dollars.both are paying 50 dollars, however, how am I getting ripped off when I pay the 1st way adding 50 to my rent and taking away 50 from my roommate as opposed to the second way? how does that work? Why do I have to increase my rent by 30 dollars and decrease my roommmates rent by 20 to get the 50 dollar difference? Why cant just add 50 to my rent and decrease my roommates rent by 50 taking away 50 from his rent and adding that 50 to my rent?What is this rent trick called? this is the first time Ive ever encounteredAssistant: Im not sure I understand why this is a rent trick? Are you willing to pay 530 for the bigger room or not? If not, are you willing to pay 505 for it?Human: I meant to say If I pay 505 and my roommate pays 455, the difference would be 50 dollars.if i pay 530 and my roommate pays 430, the difference is 100.Would I be paying more in the second case? Assistant: Yes. Youre paying 530 versus 505, or 25 extra.If you want to pay 50 more in rent, you pay 505 versus 455 total 960. If you want to pay 100 more in rent, you pay 530 versus 430 total 960. Its not a trick, its math.Human: My mind still doesnt get this.Why isnt just adding 50 dollars to my rent, resulting in 530, and decreasing his rent to 430 the same as doing my rent 505 and his rent 455 ?  <response>: I think youre looking at this wrong. So your total rent is 960. You want to pay 50 more for a big room and still have the total be 960. Forget the 480. Youre looking at x x 50 960. That makes your rent 505 and your roommates rent 455. You wont be able to reduceincrease from the 480 to work it out. 