Replace (row ) with the row operation in order to convert some elements in the row to the desired value .

Replace (row ) with the actual values of the elements for the row operation .

Simplify (row ).

Replace (row ) with the row operation in order to convert some elements in the row to the desired value .

Replace (row ) with the actual values of the elements for the row operation .

Simplify (row ).

Replace (row ) with the row operation in order to convert some elements in the row to the desired value .

Replace (row ) with the actual values of the elements for the row operation .

Simplify (row ).

Replace (row ) with the actual values of the elements for the row operation .

Simplify (row ).

Replace (row ) with the actual values of the elements for the row operation .

Simplify (row ).

Replace (row ) with the actual values of the elements for the row operation .

Simplify (row ).

Replace (row ) with the actual values of the elements for the row operation .

Simplify (row ).

Replace (row ) with the actual values of the elements for the row operation .

Simplify (row ).

Replace (row ) with the actual values of the elements for the row operation .

Simplify (row ).

Find Reduced Row Echelon Form [[4,9,-4,-12],[9,2,7,6],[4,-2,2,-1]]