\[ \frac{3(3p-1)}{72} - \frac{2(2p+6)}{72} = 1 \]
\[ \frac{9p - 3 - (4p + 12)}{72} = 1 \]\frac{9p - 3 - 4p - 12}{72} = 1
\[ \frac{5p - 15}{72} = 1 \]
\[ 5p - 15 = 72 \]
\[ 5p = 72 + 15 \]5p = 87p = \frac{87}{5} = 17.4
Ответ: p = 17,4