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**Unformatted text preview: **4. Determine if the following two systems of linear equations are equiva-lent. x 1-x 2 = 4 3 x 1 + x 2 = 8 2 x 1 + x 2 = 5 x 1 + x 2 = 2 5. For what a,b,c are the following two matrices row-equivalent: 2 0 0 a-1 0 b c 3 , 1 1 2-2 0-1 1 3 5 1...

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