SOLUTION: After 3/4 of the people in a room leave,three people enter the same room.the number of people who are in the room assuming no other people enter or leave is 1/3 of the original num

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: After 3/4 of the people in a room leave,three people enter the same room.the number of people who are in the room assuming no other people enter or leave is 1/3 of the original num      Log On


   

Question 872093: After 3/4 of the people in a room leave,three people enter the same room.the number of people who are in the room assuming no other people enter or leave is 1/3 of the original number of people who were in the room.how many people left the room?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi 

x+-+%283%2F4%29x++%2B+3+=+%281%2F3%29x+

  x+-+%283%2F4%29x+-+1%2F3%29x+=+-3

    x+-13%2F12+=+-3

    %28-1%2F12%29x+=+-3

              x = 36

CHECKING our answer***

36 - 27 + 3 = 12 = 36/3

Wish You the Best in your Studies.