Answer:

And we know that the value for the west side is 
So then if we solve for x from the last equation we got:

So then the east side is about
long
Step-by-step explanation:
For this problem we know that the east side of Mrs. Hammond's ranch is 455 meters longer than the west side. Let's say that the east side is x and the west is y so we have this formula:

And we know that the value for the west side is 
So then if we solve for x from the last equation we got:

So then the east side is about
long