Use cramers rule to solve

Question

2x+3y+z=0
5x+y-2z=9
10x-5y+3z=4

Answer 1

Given equations 2x + 3y + z  = 0 ---> (1)

5x + y - 2z  = 9 ---> (2)

10x - 5y + 3z  = 4 ---> (3)

Convert the equations (1), (2) & (3) are in matrix form AX  = B.

Where A  is coefficient matrix , X  is variable matrix and B  is constant matrix.

Now solve the equations in Cramer's method.