Question

x+3y+2z=6
3x-2y+5z=5
2x-3y+6z=7solve the equation by matrix inversion method.​

Answer 1

Answer:

writing equation as AX=B

Step-by-step explanation:

[ 1 3 2 [ X [6

3 -2 5 Y = -5

2 -3 6 ] Z] 7]

hence,

A X B

|A| = | 1 3 2

3 -2 5

2 -3 6|

= 1 (-12+8) -3(18-10) -2(-9+4)

=1(-4)-3(8)-2(-5)

=-4-18+10

=-22