How do you write the matrix #[(1, 2, -1, 3), (3, 7, -5, 14), (-2, -1, -3, 8)]# using the row echelon form? Precalculus Matrix Row Operations Reduced Row Echelon Form 1 Answer Eddie Apr 17, 2017 #[(1, 2, -1, 3), (3, 7, -5, 14), (-2, -1, -3, 8)]# #R2 to R2 - 3 R1 " & " R3 to R3 +2 R1 # #[(1, 2, -1, 3), (0, 1, -2, 5), (0, 3, -5, 14)]# #R3 to R3 - 3 R2 # #[(1, 2, -1, 3), (0, 1, -2, 5), (0, 0, 1, -1)]# You now have the 3 pivots Answer link Related questions What is reduced row echelon form? How do I write the matrix #((0,0,1,3),(2,4,0,-8),(1,2,1,-1))# in row echelon form? What is the row echelon form of a #4xx4# matrix? What are common mistakes students make with row echelon form? How do I find the determinant of a matrix using row echelon form? What is an augmented matrix? How do I write the matrix #((4,3,7),(1,1,5),(4,5,7))# in reduced row echelon form? How do you solve the below equation using reduced row-echelon form? How do you write the matrix #[(1, 1, 0, 5), (-2, -1, 2, -10), (3, 6, 7, 14)]# using the row echelon form? How do you write the matrix #[(1, -1, -1, 1), (5, -4, 1, 8), (-6, 8, 18, 0)]# using the row echelon form? See all questions in Reduced Row Echelon Form Impact of this question 2627 views around the world You can reuse this answer Creative Commons License