`2x + 3y + 4z = 9,4x +9y + 3z = 10, 5x+10y + 5z = 1` then the value of `x` is

If the equation of the sphere through the circle x ^(2) +y ^(2) + z ^(2) = 9, 2x + 3y + 4z = 5 and through the point (1,2,3) is 3 (x ^(2) + y ^(2) + z ^(2)) - 2x - 3y - 4z = C, then the value of C is

If (x,y,z) is the solution of the equations 4x + y = 7 3y + 4z = 5 5x + 3z = 2 Then the value of x + y + z equals

If 4 x^(2) + 9y^(2) + z^(2) + 49 = 12 ( x+ y + z) , then what is the value of (4x + 9y - z) ?

The system of linear equations x - 2y + z = 4 2x + 3y - 4z = 1 x - 9y + (2a + 3)z = 5a + 1 has infinitely many solution for:

The system of linear equations x - 2y + z = 4 2x + 3y - 4z = 1 x - 9y + (2a + 3)z = 5a + 1 has infinitely many solution for:

If 3x + 2y + 4z = 20, 5x + 7y - 9z = - 10 which of the following can be a set of values of x , y and z ?

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

2x-3y+5z=16, 3x+ 2y-4z= -4, x + y - 2z =- 3.