A farmer wants to increase the area of his rectangular pen but keep the pen a rectangular shape. He decides to add 2 1/2 feet of
fencing to the width of the pen, but the length will remain 9 1/4 feet. The new area will be 108 3/4 square feet. Which equation can be used to determine the original width, w, of the pen?
To solve, you start with distributive property and multiply 7 by n and 3 for 7n-21<-63 the you get the 7n alone by adding 21 to -63 and the 21 for 7n<-42. now you divide 7 by itself and 42 for n<-6
