Answer questions using the following system of linear equati

Answer questions using the following system of linear equation. x -2y +3 z = 9 -x +3 y = -4 2x -5 y +5 z = 17 After (2) doubleheadarrow (3) (i.e., interchange the second and third equations). -x +3y = -4 x -2y + 3z 9 2x - 5y +5z = 17 -x +3y =-4 2x -5y + 5z 17 x -2y + 3z = 9 x -2y + 3z = 9 2x - 5y + 5z = 17 -x + 3y = -4

Solution

The given linear system of equations is

x -2y +3z = 9... (1)

-x + 3y = -4 ...(2)

2x -5y +5z = 17...(3)

If we interchange the 2nd and the 3rd equations, the given system changes to :

x -2y +3z = 9... (1)

2x -5y +5z = 17...(2) and

-x + 3y = -4 ...(3)

Thus, the option (c) is the correct answer.