%3Cp%3EGiven%20the%20equations.%3C%2Fp%3E%0A%3Cp%3E10x1%26nbsp%3B%2B%26nbsp%3B2x

Question

%3Cp%3EGiven%20the%20equations.%3C%2Fp%3E%0A%3Cp%3E10x1%26nbsp%3B%2B%26nbsp%3B2x2%26nbsp%3B%3F%26nbsp%3Bx3%26nbsp%3B%3D%26nbsp%3B27%3Cbr%20%2F%3E%0A%3F%26nbsp%3B3x1%26nbsp%3B%3F%26nbsp%3B5x2%26nbsp%3B%2B%26nbsp%3B2x3%26nbsp%3B%3D%26nbsp%3B%3F61.5%3Cbr%20%2F%3E%0Ax1%26nbsp%3B%2B%26nbsp%3Bx2%26nbsp%3B%2B%26nbsp%3B6x3%26nbsp%3B%3D%26nbsp%3B%3F21.5%3C%2Fp%3E%0A%3Cp%3E%3Cbr%20%2F%3E%0A(a)%26nbsp%3BCompute%26nbsp%3Bthe%26nbsp%3Bdeterminant.%3Cbr%20%2F%3E%0A(b)%26nbsp%3BUse%26nbsp%3BCramer's%26nbsp%3Brule%26nbsp%3Bto%26nbsp%3Bsolve%26nbsp%3Bfor%26nbsp%3Bthe%26nbsp%3Bx's.%3Cbr%20%2F%3E%0A%0A(c)%26nbsp%3BSolve%26nbsp%3Bby%26nbsp%3Bnaive%26nbsp%3BGauss%26nbsp%3Belimination.%26nbsp%3BShow%26nbsp%3Ball%26nbsp%3Bsteps%26nbsp%3Bof%26nbsp%3Bthe%3Cbr%20%2F%3E%0A%0Acomputation.%3Cbr%20%2F%3E%3C%2Fp%3E%0A

Explanation / Answer

a) -282

b&c) x=0.15248226950354626

y=10.092198581560282

z=-5.290780141843972

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