`{:(3x + 5y = 12),(3x - 5y = - 18):}`

3 x + 5y = 12, 5x + 3y = 4 .

Solve : 3x+2y = 29, 5x - y = 18

Solve the following pair of equations graphically. 3x + 5y = 12 and 3x – 5y = –18 . Also shade the region enclosed by these two lines and x-axis.

Find the equations of the bisectors of the internal angles of the triangle whose sides are : 3x + 4y -6 = 0, 12x -5y-3 = 0, 4x - 3y + 12 =0 .

Find the equation of the circle having (1, -2) as its centre and passing through 3x + y = 14, 2x + 5y = 18.

Maximise z = 10x + 6y ,Subject to 3x + y le 12 , 3x + 5y le 34 ,x,y>,0.

Multiply : (x – y) and (3x + 5y)

The simultaneous equations 3x + 5y = 7 and 6x + 10y = 18 have