Pick a number. Double it. Multiply the result by 3. Add 24. Divide by 6. Subtract your original number. Is the result always the same? Write a convincing argument for what happens.

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  1. The result of each step is shown below:

    (2x)(3) = 6x
    The result is always 6

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  2. I don't get the same number!!

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  3. I showed my work. Why not show yours? Maybe we can come to some agreement...

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  4. AHA! My mistake. 24/6=4, not 6.
    Granted I was wrong, you should have caught my error and noted it, rather than just saying we disagreed.

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