solve the linear system below  a+2b-c+4d=6 -a-4b+2c+2d =4 2a+2b-c+2d =4 a+2b+c = 4 using A.Cramer's rule B. Gaussian Elimination C. Gauss-jordan method

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Q: 3. Solve the linear system below a + 2b − c +4d = 6 -a-4b +2c + 2d = 4 2a + 2b − c + 2d = 4 a + 2b +…

A: (a). Cramer's Rule

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