Solve the system of equations using Cramer's rule.
-$x-4 y-2 z=-29$
$-3 x+y+z=-6$
$-2 \mathrm{x}+4 \mathrm{y}-\mathrm{z}=21$
A) $(5,1,8)$
B) $(-5,8,10)$
C) $(5,8,1)$
D) $(8,1,5)$

Question

Quizplus · Accepted Answer

Using Cramer's rule, the determinant of the coefficient matrix is calculated, and then determinants for each variable are found by replacing the respective column with the constants. Solving these gives the solution $(x, y, z) = (5, 8, 1)$.

Solve the System of Equations Using Cramer's Rule x−4y−2z=−29x-4 y-2 z=-29x−4y−2z=−29

Solve the System of Equations Using Cramer's Rule $x-4 y-2 z=-29$