Find the value of `P` ,if the straight lines `x+P=0,y+2=0` and `3x+2y+5=0` are concurrent.

If the straight lines 3x+4y+2=0,2x-y+3=0 and 2x+ay-6=0 are concurrent,then a=

Find the value of k so that the lines 3x-y-2=0, 5x+ky-3=0 and 2x+y-3=0 are concurrent.

Find the value of m so that the lines 3x+y+2=0, 2x-y+3=0 and x+my-3=0 may be concurrent.

Find the value of p, so that three lines 3x+y=2=0,px+2y-3=0 and 2x-y=3 are concurrent.

Show that the straight lines : x-y-1=0 , 4x+3y=25 and 2x-3y+1=0 are concurrent.

Prove that the straight lines 4x+7y=9, 5x-8y+15=0 and 9x-y+6=0 are concurrent.

Find the value of a for which the lines 2x+y-1=02x+y-1=0ax+3y-3=03x+2y-2=0 are concurrent.

For what value of k are the three st.lines : 2x+y-3=0 , 5x+ky-3=0 and 3x-y-2=0 are concurrent.

The value of k for which the lines 7x -8y +5=0, 3x-4 y+5 =0 and 4x+5y+k =0 are concurrent is given by

The sum of all the values of p for which the lines x+y-1=0, px+4y+2=0 and 4x+py+7=0 are concurrent is euqal to