solve these equations using matrices without a calculator.

Question

x-y-z=6,

2x-y-4z=-15,

5x-3y+z=-10.

Answer 1

Given equations are x-y-z = 6

2x-y-4z = -15

5x-3y+z = -10

Here to solve given equations  we use carmers method.

AX = B

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

Convert the given equations in to matrix form.

Solution of given equations x  = -168/10, y  = -242/10,  z = 14/10.