Question

solve the following system of linear equations by matrix method : x+y+z=6, x+2z=7, 3x+y+z =12​

Answer 1

Answer:

x = 3

y =1

z=2

Step-by-step explanation:

x= Dx/D =3

y=Dy/D= 1

Z = Dz/D= 2

Answer 2

Step-by-step explanation:

x + y + z =6

x + 0y +2z = 7

3x + y +z =12

x = 3

y = 1

z = 2