Systems of equations-matrices

Reference no: EM13125384

1) Solve the system using elementary row operations on the equations of the augmented matrix. Follow the systematic elimination proceedure.

xsub1 +5xsub2 = 7

-2xsub1 - 7xsub2 = -5

2) Find the point of intesection of the lines xsub1 - 5xsub2 =1 and 3xsub1 - 7xsub2 = 5

3) What is a row operation in matrices? What you do to transform it from the augmented matrix to the triangular form where you have a row of ones and 0's under and above the leading ones?

4) Solve the system.

xsub2 + 4xsub3 = -5

xsub1 + 3xsub2 +5xsub3 = -2

3xsub1 + 7xsub2 + 7xsub3 = 6

Reference no: EM13125384

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