Plane passing through the intersection of two given planes

A plane passes through the intersection of the planes $\overrightarrow{r}\cdot (8\hat{i}+2\hat{j}+9\hat{k})=16$‍ and $\overrightarrow{r}\cdot (-\hat{i}+\hat{j}-2\hat{k})=7$‍, and the point $(6,-1,4)$‍.