SOLUTION: Suppose you enter an elevator at a certain floor. The elevator moves up 6 floors, down 4 floors, and up 2 floors. You are then at floor 7. At which floor did you initially enter th

SOLUTION: Suppose you enter an elevator at a certain floor. The elevator moves up 6 floors, down 4 floors, and up 2 floors. You are then at floor 7. At which floor did you initially enter th

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Question 697897: Suppose you enter an elevator at a certain floor. The elevator moves up 6 floors, down 4 floors, and up 2 floors. You are then at floor 7. At which floor did you initially enter the elevator?
Answer by algebrahouse.com(1659) (Show Source): You can put this solution on YOUR website!
x = the floor entered
x + 6 - 4 + 2 = 7 {up 6, down 4, and up 2, puts you at 7}
x + 4 = 7 {combined like terms}
x = 3 {subtracted 4 from each side}

3 was the floor entered

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