Solve using Cramer's Rule. x+y+z=8 x-y+z=2 2x + z = 9
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solve each system of equations using Cramer’s Rule if it is applicable. If Cramer’s Rule is not applicable, say so. $$ \left\{\begin{aligned} 2 x-y &=-1 \\ x+\frac{1}{2} y &=\frac{3}{2} \end{aligned}\right. $$
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Use Cramer's rule to solve for y: 5x + 3y + 4z = 3, 3x + 4y - 5z = -19, 3x - 4y - 3z = -43.
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solve each system of equations using Cramer’s Rule if it is applicable. If Cramer’s Rule is not applicable, say so. $$ \left\{\begin{aligned} 3 x &=24 \\ x+2 y &=0 \end{aligned}\right. $$
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