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Hey there, welcome to numerate.
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So let's say we are trying to solve the system of equations here using gaussian elimination.
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And we're going to write your answers in vector form.
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So starting with the augmented matrix, matrix, we have the following here.
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So we are looking at the values from 3, 1, 1.
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So we're going downwards and the y variable we can see we have coefficient of 1, 1, 1.
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And the third coefficient is negative 2, negative 1, and positive 2.
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And then this is going to be giving us a sum or equals to 6, 0, and 3.
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All right, so this is basically our matrix form here represented.
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Now we're going to eliminate x from the second and third rows...