Question 660731: PLEASE HELP! ASAP!! When lucy picks any number between 1and20, multiplies it by 5, adds 15, divides by 5, and subtracts 3, she always gets the number she started with. Why? Evaluate and use algebraic evidence to support your conclusion
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Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! PLEASE HELP! ASAP!! When lucy picks any number between 1and20, multiplies it by 5, adds 15, divides by 5, and subtracts 3, she always gets the number she started with. Why? Evaluate and use algebraic evidence to support your conclusion
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n = the number picked
(5n + 15)/5 - 3 = n
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