Question 845913
1.{{{K=3J}}}
2.{{{K+3=6(J-1)}}}
Substitute eq. 1 into eq. 2,
{{{3J+3=6J-6}}}
{{{3J=9}}}
{{{J=3}}}
Then from eq. 1,
{{{K=3J=3(3)=9}}}