6. Draw a line through $P(3,0)$ such that the line segment $A B$ intercepted between the two lines $2 x-y-2=0$ and $x+y+3=0$ is exactly bisected by point $P$. Then the equation of this line is

保留源文本的换行和格式，直接输出翻译结果。
6. $8 x-y-24=0$ Hint: Let $A(x, y)$, then $B(6-x,-y),\left\{\begin{array}{l}2 x-y-2=0, \\ (6-x)+(-y)+3=0,\end{array}\left\{\begin{array}{l}x=\frac{11}{3}, \\ y=\frac{16}{3}\end{array}\right.\right.$