a washer and a dryer cost 659$ combined. The washer costs 91$ less than the dryer, how much was the dryer?
washer --> x
dryer --> y
x + y = 659$
y = x + 91$
x + x + 91$ = 659$
2x = 659$ - 91$
2x = 568$ |:2
x = 284$
y = x + 91$ = 284$ + 91$ = 375$
The dryer costs 375$ and washer costs 284$
