[3x+2y+25=0],[2x+y+10=0]

Solve the following system of equations by method of cross-multiplication: 3x+2y+25=0,quad 2x+y+10=0

Draw graphically 3x+2y-11=0,2x-3y+10=0

Find the equation of the circle circumscribing the quadrilateral formed by the straight lines : x-y = 0, 3x + 2y = 5, x - y = 10 and 2x + 3y = 0 .

Solve the following linear programming problem Graphically : Maximize Z = 11 x + 5y , subject to the constraints : 3x + 2y le 25, x + y le 10, x, y ge 0 .

{:(3x - y - 2 - 0),(2x + y - 8 = 0):}

{:(3x - y - 2 - 0),(2x + y - 8 = 0):}

Solve for x and y: 2x - 3y-13 =0 , 3x -2y+12 =0

Solve the system: x + y - 2z = 0, 2x - 3y + z = 0, 3x - 7y + 10z = 0, 6x - 9y + 10z = 0.

The area of the parallelogram formed by the lines 2x-3y+a=0, 3x-2y-a=0, 2x-3y+3a=0 and 3x-2y-2a=0 in square units , is