# Algebra Examples

Assign the matrix the name to simplify the descriptions throughout the problem.

Perform the row operation on (row ) in order to convert some elements in the row to .

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 ).

Perform the row operation on (row ) in order to convert some elements in the row to .

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 ).

represents the set of the free variable columns remaining in the row reduced matrix.

Nullity is the dimension of the null space of , which is the same as the number of free variables columns remaining in the row reduced matrix.

The nullity of is .