Steven has w peaches. Jake has x fewer peaches than Steven who has y more peaches than Jill. How many peaches does Jill have?
First, we need to find out how many peaches Steven has. We know that Jake has x fewer peaches than Steven, and we know that Steven has y more peaches than Jill. This means that Jake must have y - x peaches, and Steven must have y + x peaches. 

Now, we need to find out how many peaches Jill has. We know that Steven has y + x peaches, and we know that Jill has y - x fewer peaches than Steven. This means that Jill must have y - (y + x) peaches, or -x peaches. 

Therefore, the answer (symbolic expression) is: 

-x