-x+2y+7z=13, 2x-y-2z=-2 and 3x+5y+2z=-14

Question

use cramer's rule to solve

Answer 1

Given equations are -x+2y+7z =13

2x-y-2z = -2

3x+5y+2z = -14

Carmers rule AX =B

Here A is coefficient matrix,X is varible matrix and B is constant matrix.

Convert the equations into matrices form.

Solution of given equations

x =0, y = -4, z = 3