[" 29."3x-7y=7],[" 3"quad 11x+5y=8]

Add: 3x-5y+7,2x-y+5 and 3x + 2y -8.

Classify the following pairs of lines as coincident, parallel, perpendicular or intersecting : (i) 6x+14y-16=0 , 12x+28y-32=0 (ii) 3x-4y=8 , 3x+4y=11 (iii) 5x-2y=7 , 2y-5x=-7 (iv) 4x+7y=19 , 7x-4y=-2 (v) x-2y=7 , 4y-2x=13

Solve for x and y: 2x+3y=7" and "6x+5y=11 .

If the system of equation x - 2y + 5z = 3 2x - y + z = 1 and 11x - 7y + pz = q has infinitely many solution, then

If the system of equation x - 2y + 5z = 3 2x - y + z = 1 and 11x - 7y + pz = q has infinitely many solution, then

If 17x -5y=8 and 14 x -7y =-7, what is the value of 3x + 2y ?

{:("Column A", 7x + 3y = 12","3x + 7y = 8 , "Column B"),(x-y,,1):}

The equation of the bisectors between the lines 3x-4y+7=0 and 12+5y-2=0 is (A) 21x+77y-101=0 (B) 11x+3y+20=0 (C) 21x-7y+3=0 (D) 11x-3y+9=0