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Lera25 [3.4K]
3 years ago
15

97. An elevator in a tall building goes up 7 floors, then

Mathematics
1 answer:
Komok [63]3 years ago
5 0

so, start floor = x

x + 7 - 9 - 4 + 8 - 2 = 14

x = 14

the elevator started on the 14th floor.

to verify: 14 + 7 = 21 - 9 = 12 - 4 = 8 + 8 = 16 - 2 = 14

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Answer:

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