If 8642x is divisible by 9, then find the value of x
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Step-by-step explanation:
A number is divisible by 9 if the sum of its digits is also divisible by 9.
2+1+3+x+2+7=0,9,18,27,...
2+1+3+x+2+7=15+x
According to the question x is a single digit.
Hence, 18=15+x ⇒x=18−15=3
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