SOLUTION: The six-digit number 67x874 is divisible by 3. What values can be x?

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Question 1101515: The six-digit number 67x874 is divisible by 3. What values can be x?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x must be a missing digit.

6%2B7%2Bx%2B8%2B7%2B4 must be a multiple of 3.
x%2B32

Divisible by 3 if x=1 or x=4 or x=7