Let Ax = b be a linear system whose augmented matrix has a reduced row echelon form given by: 1 0 -1 2 2 0 1 1 13 0 0 0 0 0 -()- 1 If the first column vector of A is a1 = and b = ,find the matrix A. 4 -1

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A: Find 4x if x= 8?

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A: Topic:- algebra

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A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

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A:

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A:

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A: Find a number for which of 13 less than the number is the same as 13 more than the number.

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A: Given 5X = 7

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A:

Q: 7² + 4 = 3. 8.

A: We have to find  738 + 4 =  Since ,  738 = {(7 × 8) + 3)}8