SOLUTION: Frank entered an elevator. The elevator ascended eleven floors, descended five floors, and finally ascended nine floors. If Frank exits the elevator on the 39th floor, what floor d

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Question 284307: Frank entered an elevator. The elevator ascended eleven floors, descended five floors, and finally ascended nine floors. If Frank exits the elevator on the 39th floor, what floor did her enter the elevator on?
(A) 24 (B) 15 (C) -15 (D) 10 (E) 25
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be the florr he started on
x+%2B+11+-+5+%2B+9+=+39
x+%2B+15+=+39
x+=+24