# If x is a digit of the number such that it is divisible by 9, find possible values of x.

Here it is given that is divisible by 9.

We know that if a number is divisible by 9, then sum of digits must be a multiple of 9.

6 + 6 + 7 + 8 + 4 + x = multiple of 9

x + 31 = 0,9,18,27,…..

But ‘x’ is a digit, hence, ‘x’ can have value between 0 to 9.

x + 31 = 36.

x = 5

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