In Problems 15- 12 , solve each system of equations using Cramer's Rule if it is applicable. If

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Step 1: Write down the system of equations in matrix form u005C( AX u003D B u005C), where u005C( A u005C) is the coe

In Problems 15- 12 , solve each system of equations using Cramer's Rule if it is applicable. If Cranter's Rule is nor applicable, say sa $\left\{\begin{array}{r}x+4 y-3 z=-8 \\ 3 x-y+3 z=12 \\ x+y+6 z=1\end{array}\right.$