solve each system by using matrices

Question

4x+8y+z=2
x+7y-3z=-14
2x-3y+2z=23

Answer 1

Given equations are 4x + 8y + z  = 2 ---> (1)

x + 7y - 3z  = -14 ---> (2)

2x - 3y + 2z  = 23 ---> (3)

Now solve the equations in Cramer's rule

Write the equations into matrices form AX  = B .

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

Solution :