If \( A=2 x+13, B=x+7 \), where \( x \) is a natural number, then HCF of \( A \) and \( B \) is:
If \( A=2 x+13, B=x+7 \), where \( x \) is a natural number, then HCF of \( A \) and \( B \) is:
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