Kensen and Shelly are each saving money. Kensen has $60 in savings and will save an additional $12 every week.
Shelly has $85 in savings and will save an additional $7 every week.

Which equation can be used to determine w, the number of weeks it will take Kensen and Shelly to save the same amount of money?

A. 60 + 7w = 85 + 12w
B, 720 + 60w = 595 + 85w
C. 7w + 595 = 12w + 720
D. 60 + 12w = 85 + 7w.