Find the value of `p` if the straight lines `x+p=0, y+2=0, 3x+2y+6=0` are concurrent.

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

Find the value of p, if straight line x+p=0,y+2=0 3x+2y+5=0 are concurrent.

For what value of 'a' the three straight lines 3x+y+2=0, x-y+2=0, x+2ay+5=0 are concurrent.

Find the value of p if the equation of the straight lines x+p=0,y+2=0,3x+2y+5=0 are concurrent.

Find the value of p,if the straight lines 6x-10y+3=0,kx-5y+8=0 are parellel.

Find the value of a for which the straight lines x+y-4=0,3x+2=0 and x-y+3a=0 are concurrent.

Find the value of 'p' if the lines 4x-3y-7=0 ,2x+py+2=0 and 6x+5y-1=0 are concurrent .,

Find the value of p if the straight lines 3x + 7 y - 1 = 0 and 7 x - py + 3 = 0 are mutually perpendicular .