Use the Gauss-Jordan method to solve the system of equations.

Question

4x-3y+z+w=21
-2x-y+2x+w=2
10x -5z-20w=15

Answer 1

The system of equations are .

The above system equations has three equations with four variables such as x, y, z and w.

To solve any system equation, the number of equations is must be equals to the number of variables.

So, there is no possible to solve the above system equations.