Answer:
[tex]j - 6 = \frac{1}{2} j + 3 \\ collect \: like \: terms \\ j - \frac{1}{2} j = 3 + 6 \\ j - \frac{j}{2} = 9 \\ find \: lcm \\ \frac{2j - j}{2} = 9 \\ multiply \: both \: side \: by \: 2 \\ \frac{2j - j}{2} \times 2 = 9 \times 2 \\ 2 \: cancel \: 2 \\ 2j - j = 18 \\ j = 18[/tex]
