ALGEBRA

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can you help me with this. d don't get it at all :(

let n be the number used for the given number puzzle. use algebra to show how the puzzle works.

1. pick a number
2. subtract 9
3. multiply by 6
4. divide by 3
5. add 18
6. subtract twice your original number
You will always get zero

  • ALGEBRA -

    Here is how to follow the first six steps. Try finishing it yourself.
    Call the number you pick x.
    x-9
    6(x-9)
    6(x-9)/3 = 2(x-3)
    2(x-9)+18
    subrtact 2x from that

  • ALGEBRA -

    i am still confused on the last step

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