16. DIG DEEPER You ask your friend to pick a whole number. You tell him to add to the number, then to multiply by 3, After evaluting the expression, your friend says the value is 57. Describe how you can find the number your friend picked.

The number that was added onto is 19 It didn't start at 19, your friend added a number, x, onto the number they picked before, y, and it ended up being 19.

We must assume the original number was less than 19 but not less than 0. We must assume that x is most likely less than 10. Both of these numbers could be anything between or below 19.

Step-by-step explanation:

[tex]\frac{57}{3}\\= 19[/tex]

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16. DIG DEEPER You ask your friend to pick a whole number. You tell him to add to the number, then to multiply by 3, After evaluting the expression, your friend says the value is 57. Describe how you can find the number your friend picked.​

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16. DIG DEEPER You ask your friend to pick a whole number. You tell him to add to the number, then to multiply by 3, After evaluting the expression, your friend says the value is 57. Describe how you can find the number your friend picked.