In 2011, the average office space per worker was 165 square feet, down 21.9% from 2009. what was the average office space per worker in 2009. what was the average office space per worker in 2009?

put like terms together.orremember that the 45 becomes negative when moved to the other side.orthe minuses cancel out.

  example you can find the perimeter by addig all of its respective sides as such: (12+x)+(12+x)+(7+y)+(7+y).  adding like terms will result in   2x+2y+38    if you chose  xy+7x+12y+84, you multiplied the two sides to find the area.  if you chose  x+y+19