\text { Find the line of intersection of the planes } x+9 y+z=6 \text { and } x-3 y+4 z=15 \text {. } x=-13 t+3, y=t \text { and }

z=4 t+3 x=-13 t+6, y=t \text { and } z=4 t+3 x=13 t+3, y=t \text { and } z=4 t+3 x=-13 t+3, y=t \text { and } z=4 t-3