If x is divided by 9, the remainder is 5. What is the remainder if 3x is divided by 9?

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If x is divided by 9, the remainder is 5. What is the remainder if 3x is divided by 9?

pick an integer x where when dividing by 9, we get a remainder of 5.
14/9 gives us a remainder of 5.

Now multiply 14 by 3:
14 * 3 = 42
42/9 gives a remainder of 6