SOLUTION: Perform the row operations indicated beside the matrix. Write the matrix obtained. 5 1 2 5 5 2 1 4 5 2 −4 2 −R3 + R1 → R1

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Question 1126690: Perform the row operations indicated beside the matrix. Write the matrix obtained.
5 1 2 5
5 2 1 4
5 2 −4 2
−R3 + R1 → R1


Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
.
The assignment says:


    Take the third row elements (numbers).  Change their signs.


    Then add what you got to the first line elements (numbers).


    Then write the final result (the final row of numbers) in the first row of the given matrix,

         by overlying (over-posing) the original values there.


Good luck and remember that NOWHERE ELSE you will get better instructions !