Answer: 325$
Explanation:
Let us create two functions to express the relationship.
w = washer
d = dryer
w + d = 705
w = 55 + d
Now, we need to solve for "d" to figure out the cost of it. To do this, we can plug in our w = 55 + d equation into the first equation.
55 + d + d = 705
2d = 650
d = 325 dollars